Results 131 to 140 of about 2,853 (179)
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Polymer Science U.S.S.R., 1987
Abstract The kinetic features of the anionic polymerization of e-caprolactam initiated by alkali metal (K + , Na + , Li + ) lactamates in the presence of aluminium caprolactamate (AlCA 3 ) are studied. The complex [AlCA 4 ] − anion formed by the latter slows down the process, this anion being less reactive than the lactam ion.
V.A. Kotel'nikov +2 more
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Abstract The kinetic features of the anionic polymerization of e-caprolactam initiated by alkali metal (K + , Na + , Li + ) lactamates in the presence of aluminium caprolactamate (AlCA 3 ) are studied. The complex [AlCA 4 ] − anion formed by the latter slows down the process, this anion being less reactive than the lactam ion.
V.A. Kotel'nikov +2 more
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Die Makromolekulare Chemie, 1960
AbstractThe mechanism of the alkaline polymerization of caprolactam is discussed. It is pointed out, that various untypical transpostions of the amide group occur simultaneously with the normal transamidation process. It is assumed that imide groups formed by a disproportionating transamidation take part in condensatoion reactions.
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AbstractThe mechanism of the alkaline polymerization of caprolactam is discussed. It is pointed out, that various untypical transpostions of the amide group occur simultaneously with the normal transamidation process. It is assumed that imide groups formed by a disproportionating transamidation take part in condensatoion reactions.
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Journal of Polymer Science, 1958
AbstractThe change in the intrinsic viscosity brought about by heating samples of alkalipolymerized polycaprolactam to 220–250°C. for extended periods has been investigated. The polymer samples were obtained by the catalytic action of the sodium salt of caprolactam.
Jar. Králíček, J. Šebenda
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AbstractThe change in the intrinsic viscosity brought about by heating samples of alkalipolymerized polycaprolactam to 220–250°C. for extended periods has been investigated. The polymer samples were obtained by the catalytic action of the sodium salt of caprolactam.
Jar. Králíček, J. Šebenda
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Opérations unitaires. Génie de la réaction chimique, 1990
Gilles LEFEBVRE, Alain CHAUVEL
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Gilles LEFEBVRE, Alain CHAUVEL
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Collection of Czechoslovak Chemical Communications, 1968
E. Šittler, J. Šebenda
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E. Šittler, J. Šebenda
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Fresenius' Zeitschrift für analytische Chemie, 1958
O. Pollak v. Emhofen, A. Kurtenacker
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O. Pollak v. Emhofen, A. Kurtenacker
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Oligomerization of ?-caprolactam
Fibre Chemistry, 1973D. G. Zapolskii +4 more
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