SYNTHESIS OF AMPHIPHILIC BLOCK COPOLYMERS BY ATOM TRANSFER RADICAL POLYMERIZATION

HUA Man; CHEN Mingqing; LIU Xiaoya; YANG Cheng

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SYNTHESIS OF AMPHIPHILIC BLOCK COPOLYMERS BY ATOM TRANSFER RADICAL POLYMERIZATION

Research Article | 更新时间：2021-03-19

- SYNTHESIS OF AMPHIPHILIC BLOCK COPOLYMERS BY ATOM TRANSFER RADICAL POLYMERIZATION
- Acta Polymerica Sinica Issue 5, Pages: 645-649(2004)
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- Published：20 October 2004，
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HUA Man, CHEN Mingqing, LIU Xiaoya, YANG Cheng. SYNTHESIS OF AMPHIPHILIC BLOCK COPOLYMERS BY ATOM TRANSFER RADICAL POLYMERIZATION. [J]. Acta Polymerica Sinica (5):645-649(2004)
DOI：

HUA Man, CHEN Mingqing, LIU Xiaoya, YANG Cheng. SYNTHESIS OF AMPHIPHILIC BLOCK COPOLYMERS BY ATOM TRANSFER RADICAL POLYMERIZATION. [J]. Acta Polymerica Sinica (5):645-649(2004) DOI：

摘要

以α-溴代丙酸乙酯 (EPN-Br)为引发剂、氯化亚铜 (CuCl)和联二吡啶(bpy)组成的混合体系为催化剂

引发苯乙烯聚合

得到了端基为卤原子的单分散聚苯乙烯 (PS-X)预聚体 .以此PS-X为大分子引发剂、CuCl和N

N′

N″

N″-五甲基二亚乙基三胺 (PMDETA) bpy的混合体系为催化剂

引发N

N-二甲基丙烯酰胺(DMAA)聚合

得到了分子量分布较窄的聚苯乙烯-b-聚N

N-二甲基丙烯酰胺 (PS-b-PDMAA)两亲性嵌段共聚物.考察了大分子引发剂的分子质量、聚合介质及配位剂等对聚合过程的影响 .并用GPC、IR、1H-NMR等对产物进行了表征.研究结果表明

该聚合反应体系符合原子转移自由基聚合的特征.

Abstract

Polystyrene single-capped with halogen

PS-X

was synthesized by atom transfer radical polymerization (ATRP) method using ethyl-α-bromopropionate(EPN-Br) as initiator and CuCl／2

2′-bipyridine (bpy) as catalyst and ligand at 110℃．By using PS-X as macroinitiator and CuCl／1

7-penta-methyldiethylenetri-amine (PMDETA) or bpy as catalyst and ligand at 110℃

ATRP of N

N-dimethylacrylamide(DMAA) was realized and functional amphiphilic block copolymers of poly(styrene-block-N

N-dimethylacrylamide) (PS-b-PDMAA) were synthesized. Furthermore

some factors including the molecular weight of macroinitiator

various solvents and ligand that influence the polymerization of DMAA have been studied. The properties of the PS--b-PDMAA copolymer were characterized by using GPC．IR and 1H-NMR analysis．

关键词

原子转移自由基聚合两亲性嵌段共聚物特征

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Department of Applied Chemistry,School of Science,Northwestern Polytechnical University

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