Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption
Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI)...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wang, Jianquan [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2014transfer abstract |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization - De Pauli, R.F. ELSEVIER, 2014transfer abstract, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:81 ; year:2014 ; pages:8-13 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.reactfunctpolym.2014.03.013 |
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| 520 | |a Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. | ||
| 520 | |a Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. | ||
| 650 | 7 | |a N,N-dimethylaminoethyl methacrylate |2 Elsevier | |
| 650 | 7 | |a Swelling property |2 Elsevier | |
| 650 | 7 | |a Graphene oxide |2 Elsevier | |
| 650 | 7 | |a Cr(VI) adsorption |2 Elsevier | |
| 650 | 7 | |a Hydrogel |2 Elsevier | |
| 700 | 1 | |a Song, Danqiao |4 oth | |
| 700 | 1 | |a Jia, Shanshan |4 oth | |
| 700 | 1 | |a Shao, Ziqiang |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a De Pauli, R.F. ELSEVIER |t Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization |d 2014transfer abstract |g Amsterdam [u.a.] |w (DE-627)ELV011991879 |
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10.1016/j.reactfunctpolym.2014.03.013 doi GBVA2014002000027.pica (DE-627)ELV027798615 (ELSEVIER)S1381-5148(14)00066-2 DE-627 ger DE-627 rakwb eng 540 660 540 DE-600 660 DE-600 540 VZ 610 VZ 44.85 bkl Wang, Jianquan verfasserin aut Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. N,N-dimethylaminoethyl methacrylate Elsevier Swelling property Elsevier Graphene oxide Elsevier Cr(VI) adsorption Elsevier Hydrogel Elsevier Song, Danqiao oth Jia, Shanshan oth Shao, Ziqiang oth Enthalten in Elsevier De Pauli, R.F. ELSEVIER Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization 2014transfer abstract Amsterdam [u.a.] (DE-627)ELV011991879 volume:81 year:2014 pages:8-13 extent:6 https://doi.org/10.1016/j.reactfunctpolym.2014.03.013 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 44.85 Kardiologie Angiologie VZ AR 81 2014 8-13 6 045F 540 |
| spelling |
10.1016/j.reactfunctpolym.2014.03.013 doi GBVA2014002000027.pica (DE-627)ELV027798615 (ELSEVIER)S1381-5148(14)00066-2 DE-627 ger DE-627 rakwb eng 540 660 540 DE-600 660 DE-600 540 VZ 610 VZ 44.85 bkl Wang, Jianquan verfasserin aut Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. N,N-dimethylaminoethyl methacrylate Elsevier Swelling property Elsevier Graphene oxide Elsevier Cr(VI) adsorption Elsevier Hydrogel Elsevier Song, Danqiao oth Jia, Shanshan oth Shao, Ziqiang oth Enthalten in Elsevier De Pauli, R.F. ELSEVIER Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization 2014transfer abstract Amsterdam [u.a.] (DE-627)ELV011991879 volume:81 year:2014 pages:8-13 extent:6 https://doi.org/10.1016/j.reactfunctpolym.2014.03.013 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 44.85 Kardiologie Angiologie VZ AR 81 2014 8-13 6 045F 540 |
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10.1016/j.reactfunctpolym.2014.03.013 doi GBVA2014002000027.pica (DE-627)ELV027798615 (ELSEVIER)S1381-5148(14)00066-2 DE-627 ger DE-627 rakwb eng 540 660 540 DE-600 660 DE-600 540 VZ 610 VZ 44.85 bkl Wang, Jianquan verfasserin aut Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. N,N-dimethylaminoethyl methacrylate Elsevier Swelling property Elsevier Graphene oxide Elsevier Cr(VI) adsorption Elsevier Hydrogel Elsevier Song, Danqiao oth Jia, Shanshan oth Shao, Ziqiang oth Enthalten in Elsevier De Pauli, R.F. ELSEVIER Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization 2014transfer abstract Amsterdam [u.a.] (DE-627)ELV011991879 volume:81 year:2014 pages:8-13 extent:6 https://doi.org/10.1016/j.reactfunctpolym.2014.03.013 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 44.85 Kardiologie Angiologie VZ AR 81 2014 8-13 6 045F 540 |
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10.1016/j.reactfunctpolym.2014.03.013 doi GBVA2014002000027.pica (DE-627)ELV027798615 (ELSEVIER)S1381-5148(14)00066-2 DE-627 ger DE-627 rakwb eng 540 660 540 DE-600 660 DE-600 540 VZ 610 VZ 44.85 bkl Wang, Jianquan verfasserin aut Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. N,N-dimethylaminoethyl methacrylate Elsevier Swelling property Elsevier Graphene oxide Elsevier Cr(VI) adsorption Elsevier Hydrogel Elsevier Song, Danqiao oth Jia, Shanshan oth Shao, Ziqiang oth Enthalten in Elsevier De Pauli, R.F. ELSEVIER Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization 2014transfer abstract Amsterdam [u.a.] (DE-627)ELV011991879 volume:81 year:2014 pages:8-13 extent:6 https://doi.org/10.1016/j.reactfunctpolym.2014.03.013 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 44.85 Kardiologie Angiologie VZ AR 81 2014 8-13 6 045F 540 |
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10.1016/j.reactfunctpolym.2014.03.013 doi GBVA2014002000027.pica (DE-627)ELV027798615 (ELSEVIER)S1381-5148(14)00066-2 DE-627 ger DE-627 rakwb eng 540 660 540 DE-600 660 DE-600 540 VZ 610 VZ 44.85 bkl Wang, Jianquan verfasserin aut Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption 2014transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. N,N-dimethylaminoethyl methacrylate Elsevier Swelling property Elsevier Graphene oxide Elsevier Cr(VI) adsorption Elsevier Hydrogel Elsevier Song, Danqiao oth Jia, Shanshan oth Shao, Ziqiang oth Enthalten in Elsevier De Pauli, R.F. ELSEVIER Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization 2014transfer abstract Amsterdam [u.a.] (DE-627)ELV011991879 volume:81 year:2014 pages:8-13 extent:6 https://doi.org/10.1016/j.reactfunctpolym.2014.03.013 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 44.85 Kardiologie Angiologie VZ AR 81 2014 8-13 6 045F 540 |
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English |
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Enthalten in Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization Amsterdam [u.a.] volume:81 year:2014 pages:8-13 extent:6 |
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Enthalten in Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization Amsterdam [u.a.] volume:81 year:2014 pages:8-13 extent:6 |
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Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization |
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Withdrawal induces distinct patterns of FosB/∆FosB expression in outbred Swiss mice classified as susceptible and resistant to ethanol-induced locomotor sensitization |
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poly(n,n-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: ph and temperature sensitivities and cr(vi) adsorption |
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Poly(N,N-dimethylaminoethyl methacrylate)/graphene oxide hybrid hydrogels: pH and temperature sensitivities and Cr(VI) adsorption |
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Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. |
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Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. |
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Different amounts of graphene oxide (GO) were incorporated to N,N-dimethylaminoethyl methacrylate (DMAEMA), fabricating a series of pH and temperature dual sensitive PDMAEMA/GO hybrid hydrogels by in situ polymerization. Their microscopic network structures as well as swelling properties and Cr(VI) adsorption were characterized. The equilibrium swelling ratios (ESR) of hydrogels increased significantly with 0.5wt% GO feeding of DMAEMA amount, and then decreased with further GO loading increasing. All hydrogels showed obvious deswelling when pH value of swelling mediums increased from 5 to 10 gradually. At pH 7, hydrogels revealed slight ESR increment with temperature up to 50°C, above which obvious deswelling occurred. In pH 8 buffer, 0.5wt% of GO loading triggered lower critical solution temperature (LCST) to decrease by 3°C, and 2–7°C increment was observed when 1–6wt% of GO was loaded, as compared with that of GO-free PDMAEMA hydrogel. Cr(VI) adsorption of hydrogels was also improved by the introduction of GO to some extent, and the maximum Cr(VI) adsorption of 180mg/g was realized, indicating that the obtained PDMAEMA/GO hybrid hydrogels possess excellent adsorption performance. |
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