Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday
The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4...
Ausführliche Beschreibung
Gespeichert in:
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1983 |
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| Umfang: |
8 Ill. ; 1 Tab. 10 |
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| Reproduktion: |
Wiley InterScience Backfile Collection 1832-2000 |
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in: Die Makromolekulare Chemie - New York : Hüthig & Wepf Verlag, 184(1983) vom: Okt., Seite 1987-1996 |
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volume:184 ; year:1983 ; month:10 ; pages:1987-1996 ; extent:10 |
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| 245 | 1 | 0 | |a Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday |
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| 520 | |a The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. | ||
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(DE-627)NLEJ163854181 DE-627 ger DE-627 rakwb eng Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday 1983 8 Ill. 1 Tab. 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. Wiley InterScience Backfile Collection 1832-2000 Roda, Jan oth Králíček, Jaroslav oth Šubr, Vladimír oth Stehlíček, Jaroslav oth in Die Makromolekulare Chemie New York : Hüthig & Wepf Verlag 184(1983) vom: Okt., Seite 1987-1996 (DE-627)NLEJ159071488 0025-116X nnns volume:184 year:1983 month:10 pages:1987-1996 extent:10 http://dx.doi.org/10.1002/macp.1983.021841004 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 184 1983 10 1987-1996 10 |
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(DE-627)NLEJ163854181 DE-627 ger DE-627 rakwb eng Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday 1983 8 Ill. 1 Tab. 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. Wiley InterScience Backfile Collection 1832-2000 Roda, Jan oth Králíček, Jaroslav oth Šubr, Vladimír oth Stehlíček, Jaroslav oth in Die Makromolekulare Chemie New York : Hüthig & Wepf Verlag 184(1983) vom: Okt., Seite 1987-1996 (DE-627)NLEJ159071488 0025-116X nnns volume:184 year:1983 month:10 pages:1987-1996 extent:10 http://dx.doi.org/10.1002/macp.1983.021841004 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 184 1983 10 1987-1996 10 |
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(DE-627)NLEJ163854181 DE-627 ger DE-627 rakwb eng Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday 1983 8 Ill. 1 Tab. 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. Wiley InterScience Backfile Collection 1832-2000 Roda, Jan oth Králíček, Jaroslav oth Šubr, Vladimír oth Stehlíček, Jaroslav oth in Die Makromolekulare Chemie New York : Hüthig & Wepf Verlag 184(1983) vom: Okt., Seite 1987-1996 (DE-627)NLEJ159071488 0025-116X nnns volume:184 year:1983 month:10 pages:1987-1996 extent:10 http://dx.doi.org/10.1002/macp.1983.021841004 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 184 1983 10 1987-1996 10 |
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(DE-627)NLEJ163854181 DE-627 ger DE-627 rakwb eng Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday 1983 8 Ill. 1 Tab. 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. Wiley InterScience Backfile Collection 1832-2000 Roda, Jan oth Králíček, Jaroslav oth Šubr, Vladimír oth Stehlíček, Jaroslav oth in Die Makromolekulare Chemie New York : Hüthig & Wepf Verlag 184(1983) vom: Okt., Seite 1987-1996 (DE-627)NLEJ159071488 0025-116X nnns volume:184 year:1983 month:10 pages:1987-1996 extent:10 http://dx.doi.org/10.1002/macp.1983.021841004 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 184 1983 10 1987-1996 10 |
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(DE-627)NLEJ163854181 DE-627 ger DE-627 rakwb eng Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday 1983 8 Ill. 1 Tab. 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. Wiley InterScience Backfile Collection 1832-2000 Roda, Jan oth Králíček, Jaroslav oth Šubr, Vladimír oth Stehlíček, Jaroslav oth in Die Makromolekulare Chemie New York : Hüthig & Wepf Verlag 184(1983) vom: Okt., Seite 1987-1996 (DE-627)NLEJ159071488 0025-116X nnns volume:184 year:1983 month:10 pages:1987-1996 extent:10 http://dx.doi.org/10.1002/macp.1983.021841004 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 184 1983 10 1987-1996 10 |
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Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday |
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8 Ill. 1 Tab. 10 |
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polymerization of lactams, 64part 63: cf.22. nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsdedicated to professor o. wichterle on the occasion of his 70th birthday |
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Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday |
| abstract |
The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. |
| abstractGer |
The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. |
| abstract_unstemmed |
The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined. |
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Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday |
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Roda, Jan Králíček, Jaroslav Šubr, Vladimír Stehlíček, Jaroslav |
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2024-07-06T09:30:42.131Z |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ163854181</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230506174756.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070201s1983 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ163854181</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Polymerization of lactams, 64Part 63: cf.22. Nonactivated anionic polymerization of 2-pyrrolidone in the presence of quaternary ammonium cationsDedicated to Professor O. Wichterle on the occasion of his 70th birthday</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1983</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="b">8 Ill.</subfield><subfield code="b">1 Tab.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">10</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The effect of addition of quaternary ammonium halides was studied in the nonactivated polymerization of 2-pyrrolidone (1) initiated with the potassium salt of 2-pyrrolidone (2-oxo-1-pyrrolidinylpotassium) (2). The polymerization was accelerated upon small additions of Me4NCl, whereas addition of Et4NBr and Bu4NBr rather had a retardation effect and reduced the molecular weight of polymer. The formation of the corresponding quaternary ammonium salts of 2-pyrrolidone in situ is analogous to the formation of the pure salts in their synthesis from the ammonium halides. The nonactivated polymerization of 1 initiated with the pure tetramethylammonium salt of 2-pyrrolidone (3) showed all kinetic features of other nonactivated polymerizations of 1. High yields and molecular weights of poly(2-pyrrolidone) and a higher number of growth centers during polymerization are evidence of a higher dissociation of 3 dissolved in 1 in comparison with 2 as the initiator. The activation energy of polymerization activated with 3 (47,9 kJ · mol-1 in the range 35 to 55°C) and the reaction order with respect to 3 (1,3 at 45°C) were determined.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Wiley InterScience Backfile Collection 1832-2000</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Roda, Jan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Králíček, Jaroslav</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Šubr, Vladimír</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Stehlíček, Jaroslav</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Die Makromolekulare Chemie</subfield><subfield code="d">New York : Hüthig & Wepf Verlag</subfield><subfield code="g">184(1983) vom: Okt., Seite 1987-1996</subfield><subfield code="w">(DE-627)NLEJ159071488</subfield><subfield code="x">0025-116X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:184</subfield><subfield code="g">year:1983</subfield><subfield code="g">month:10</subfield><subfield code="g">pages:1987-1996</subfield><subfield code="g">extent:10</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1002/macp.1983.021841004</subfield><subfield code="q">text/html</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-WIS</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">184</subfield><subfield code="j">1983</subfield><subfield code="c">10</subfield><subfield code="h">1987-1996</subfield><subfield code="g">10</subfield></datafield></record></collection>
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