Cationic ring-opening polymerization of carbazolyl-containing epoxy monomers by triphenyl carbenium salts as thermal- and photolatent initiators

被引：0
|
作者：
Lazauskaite, Ruta [1 ]
Daskeviciene, Maryte [2 ]
Getautis, Vytautas [2 ]
Grazulevicius, Juozas V. [1 ]
机构：
[1] Kaunas Univ Technol, Dept Organ Technol, LT-50254 Kaunas, Lithuania
[2] Kaunas Univ Technol, Dept Organ Chem, LT-50254 Kaunas, Lithuania
来源：
MONATSHEFTE FUR CHEMIE | 2009年 / 140卷 / 05期
关键词：
Trityl salts; Oxiranes; Oligomers; Polymerizations; Kinetics; PHOTOPOLYMERIZATION;
D O I：
10.1007/s00706-008-0090-6
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Photoinitiated cationic polymerizations of various epoxy monomers bearing a carbazole moiety, 9-[3(allyloxy)-2-(oxiran-2-ylmethoxy)propyl]-9H-carbazole, 9-[3-methoxy-2-(oxiran-2-ylmethoxy) propyl]-9H-carbazole, 9-[2-(oxiran-2-ylmethoxy)ethyl]-9H-carbazole, as well as a composition of 3,6-dibromo-9-(oxiran-2-ylmethyl)-9H-carbazole with 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexane carboxylate were investigated in bulk using triphenyl carbenium salts having anions such as BF4-, SnCl5-, and SbCl6-. Dark polymerizations of the carbazolyl monomers in the presence of the initiators are studied. These photoinduced polymerization reactions give oligomers of degree of polymerization 4-22. The effect of the anion of the photoinitiator and polymerization time on the polymerization reaction is discussed.
引用
收藏
页码：565 / 571
页数：7
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