Synthesis of Star Poly(N-vinylcarbazole) by Microwave-Assisted Reversible Addition-Fragmentation Chain Transfer Polymerization (RAFT)

被引：15

作者：

Grigoras, Mircea ^{[1
]}

Negru, Oana-Iuliana ^{[1
]}

机构：

[1] P Poni Inst Macromol Chem, Electroact Polymers Dept, Iasi 700487, Romania

来源：

POLYMERS | 2012年 / 4卷 / 02期

关键词：

N-vinylcarbazole; RAFT polymerization; three-functional dithiocarbamate chain transfer agent; microwave-assisted polymerization; star polymers; LIVING RADICAL POLYMERIZATION; N-VINYLCARBAZOLE; BLOCK-COPOLYMERS; POLYMERS; COMPLEXES;

D O I：

10.3390/polym4021183

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Controlled radical polymerization of N-vinylcarbazole (NVK) via microwave-assisted reversible addition-fragmentation chain transfer (RAFT) polymerization is described. As chain transfer agent, 1,3,5-benzyl tri (diethyldithiocarbamate), was used. The chain transfer agent, containing a 1.3.5-trisubstituted benzene ring as core and three dithiocarbamate functionalities attached through an intermediate for fragmenting covalent bonds, led to poly(N-vinylcarbazole) (PVK) with star architecture. Polymerizations were carried out in 1,4-dioxane as solvent, at 70 degrees C, and studied for different polymerization times and monomer/CTA/initiator ratios. The SEC molecular weight curves exhibit a trimodal distribution, assigned to the linear and star-star coupling polymers, accompanying the real star polymer (as main product).

引用

页码：1183 / 1194

页数：12

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