Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films
Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical propertie...
Ausführliche Beschreibung
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Englisch |
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1995 |
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8 |
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Springer Online Journal Archives 1860-2002 |
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Übergeordnetes Werk: |
in: Polymer bulletin - 1978, 35(1995) vom: Mai, Seite 575-582 |
Übergeordnetes Werk: |
volume:35 ; year:1995 ; month:05 ; pages:575-582 ; extent:8 |
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NLEJ203079728 |
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520 | |a Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. | ||
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(DE-627)NLEJ203079728 DE-627 ger DE-627 rakwb eng Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films 1995 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. Springer Online Journal Archives 1860-2002 Chun, Heung-Jae oth Beard, Richard B. oth in Polymer bulletin 1978 35(1995) vom: Mai, Seite 575-582 (DE-627)NLEJ188990879 (DE-600)1473175-7 1436-2449 nnns volume:35 year:1995 month:05 pages:575-582 extent:8 http://dx.doi.org/10.1007/BF00324111 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 35 1995 5 575-582 8 |
spelling |
(DE-627)NLEJ203079728 DE-627 ger DE-627 rakwb eng Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films 1995 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. Springer Online Journal Archives 1860-2002 Chun, Heung-Jae oth Beard, Richard B. oth in Polymer bulletin 1978 35(1995) vom: Mai, Seite 575-582 (DE-627)NLEJ188990879 (DE-600)1473175-7 1436-2449 nnns volume:35 year:1995 month:05 pages:575-582 extent:8 http://dx.doi.org/10.1007/BF00324111 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 35 1995 5 575-582 8 |
allfields_unstemmed |
(DE-627)NLEJ203079728 DE-627 ger DE-627 rakwb eng Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films 1995 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. Springer Online Journal Archives 1860-2002 Chun, Heung-Jae oth Beard, Richard B. oth in Polymer bulletin 1978 35(1995) vom: Mai, Seite 575-582 (DE-627)NLEJ188990879 (DE-600)1473175-7 1436-2449 nnns volume:35 year:1995 month:05 pages:575-582 extent:8 http://dx.doi.org/10.1007/BF00324111 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 35 1995 5 575-582 8 |
allfieldsGer |
(DE-627)NLEJ203079728 DE-627 ger DE-627 rakwb eng Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films 1995 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. Springer Online Journal Archives 1860-2002 Chun, Heung-Jae oth Beard, Richard B. oth in Polymer bulletin 1978 35(1995) vom: Mai, Seite 575-582 (DE-627)NLEJ188990879 (DE-600)1473175-7 1436-2449 nnns volume:35 year:1995 month:05 pages:575-582 extent:8 http://dx.doi.org/10.1007/BF00324111 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 35 1995 5 575-582 8 |
allfieldsSound |
(DE-627)NLEJ203079728 DE-627 ger DE-627 rakwb eng Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films 1995 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. Springer Online Journal Archives 1860-2002 Chun, Heung-Jae oth Beard, Richard B. oth in Polymer bulletin 1978 35(1995) vom: Mai, Seite 575-582 (DE-627)NLEJ188990879 (DE-600)1473175-7 1436-2449 nnns volume:35 year:1995 month:05 pages:575-582 extent:8 http://dx.doi.org/10.1007/BF00324111 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 35 1995 5 575-582 8 |
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Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films |
abstract |
Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. |
abstractGer |
Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. |
abstract_unstemmed |
Summary Ultraviolet irradiation in the presence of benzophenone (BP) as a photosensitizer was used to graft vitamin K1 (VK1) onto a film of medical grade isotactic polypropylene. The effects of various reaction conditions on the graft yeild of the samples and the changes in physicochemical properties of the sample surfaces were determined by FTIR and surface tension measurements. Increases in the ultraviolet irradiation time for the first 60 minutes markedly increased the graft yield linearly before leveling off above the 0.3 vol.% vitamin K1 concentration. A 2 wt.% concentration of BP produced the maximum graft of VK1. The surface tension of the samples increased to a value of 38 dyne/cm with increasing graft yield. |
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Ultraviolet-induced graft reaction of quinoid compounds onto polypropylene films |
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