Synthesis of a Cellulose Supported Chain Transfer Agent and Its Application to RAFT Polymerization

被引：33

作者：

Semsarilar, Mona ^{[1
]}

Ladmiral, Vincent ^{[1
]}

Perrier, Sebastien ^{[1
]}

机构：

[1] Univ Sydney, Key Ctr Polymers & Colloids, Sch Chem, Sydney, NSW 2006, Australia

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 19期

基金：

澳大利亚研究理事会; 英国工程与自然科学研究理事会;

关键词：

cellulose; ethyl acrylate; N-isopropylacrylamide; PNIPAAm; RAFT; LIVING RADICAL POLYMERIZATION; GRAFT-POLYMERIZATION; COPOLYMERS; XANTHATES; SURFACE; DESIGN;

D O I：

10.1002/pola.24232

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The preparation and characterization of cellulose-based chain transfer agent (CTA) and their use to mediate the reversible addition-fragmentation chain transfer (RAFT) polymerization of ethyl acrylate (EA) and N-isopropylacrylamide (NIPAAm) was investigated. One equivalent of hydroxyisopropyl cellulose (HPC) along with 14 equiv of a carboxylic acid-functionalized RAFT agent [propionic acidyl butyl trithiocarbonate (PABTC)] was dissolved in chloroform and the reaction was carried out in presence of seven equivalents of N,N-dimethyl-4-aminopyridine (DMAP) and N,N-dicyclohexylcarbodiimide (DCC) at 40 °C. The differential scanning calorimetry (DSC) analysis showed three glass transition temperatures (Tg) around 45, 55, and 135 °C and a melting temperature (TM) at 157 °C. The polydispersity index (PDI) of the poly(N-isopropylacrylamide) (PNIPAAm)-grafted HPC was high (PDI = 3.4) since the macro-CTA used was polydisperse.

引用

页码：4361 / 4365

页数：5

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