Ab Initio Batch Emulsion RAFT Polymerization of Styrene Mediated by Poly(acrylic acid-b-styrene) Trithicicarbonate

被引：101

作者：

Wang, Xiaoguang ^{[1
]}

Luo, Yingwu ^{[1
]}

Li, Bogeng ^{[1
]}

Zhu, Shiping ^{[2
]}

机构：

[1] Zhejiang Univ, Dept Chem & Biochem Engn, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China

[2] McMaster Univ, Dept Chem Engn, Hamilton, ON L8S 4L7, Canada

来源：

MACROMOLECULES | 2009年 / 42卷 / 17期

基金：

美国国家科学基金会;

关键词：

FRAGMENTATION CHAIN TRANSFER; CONTROLLED/LIVING RADICAL POLYMERIZATION; DISPERSED SYSTEMS; MINIEMULSION POLYMERIZATION; AMPHIPHILIC BLOCK; MOLECULAR-WEIGHT; COMPARTMENTALIZATION; AGENT; COPOLYMERIZATION; STABILIZATION;

D O I：

10.1021/ma9010999

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report an ab initio emulsion reversible addition-fragmentation chain transfer (RAFT) polymerization of styrene using poly(acrylic acid-b-styrene) trithiocarbonate as surfactant and RAFT agent. The system is characteristic or high polymerization rate, controlled polymer molecular weight, and free of coagulum. Design of the amphiphilic RAFT agent is found to be critical for the success. Poly(acrylic acid) neutralization increased the colloidal stability but led to uncontrolled molecular weight development and broad molecular weight distribution, attributed to small size and thus large number of micelles resulting in continuous particle nucleation. Polystyrene with molecular weight LIP to 120 kg/mol and block styrene-butylacrylate copolymer with well-controlled molecular weight were readily synthesized with this method.

引用

页码：6414 / 6421

页数：8

共 35 条

[1]

Barner-Kowollik C, 2001, J POLYM SCI POL CHEM, V39, P656, DOI 10.1002/1099-0518(20010301)39:5<656::AID-POLA1037>3.0.CO

[2]

2-9

[3] Miniemulsion living free radical polymerization by RAFT [J].

Butté, A ;

Storti, G ;

Morbidelli, M .

MACROMOLECULES, 2001, 34 (17) :5885-5896

[4] Living free-radical polymerization by reversible addition-fragmentation chain transfer: The RAFT process [J].

Chiefari, J ;

Chong, YK ;

Ercole, F ;

Krstina, J ;

Jeffery, J ;

Le, TPT ;

Mayadunne, RTA ;

Meijs, GF ;

Moad, CL ;

Moad, G ;

Rizzardo, E ;

Thang, SH .

MACROMOLECULES, 1998, 31 (16) :5559-5562

[5] Controlled/living radical polymerization in aqueous dispersed systems [J].

Cunningham, Michael F. .

PROGRESS IN POLYMER SCIENCE, 2008, 33 (04) :365-398

[6] Living radical polymerization in miniemulsion using reversible addition-fragmentation chain transfer [J].

de Brouwer, H ;

Tsavalas, JG ;

Schork, FJ ;

Monteiro, MJ .

MACROMOLECULES, 2000, 33 (25) :9239-9246

[7] Kinetics of in-situ formation of poly(acrylic acid)-b-polystyrene amphiphilic block copolymers via nitroxide-mediated controlled free-radical emulsion polymerization. discussion on the effect of compartmentalization on the polymerization rate [J].

Delaittre, Guillaume ;

Charleux, Bernadette .

MACROMOLECULES, 2008, 41 (07) :2361-2367

[8] Combining steric and electrostatic stabilization using hydrophilic MacroRAFT agents in an Ab initio emulsion polymerization of styrene [J].

dos Santos, Arnilton Martins ;

Pohn, Jordan ;

Lansalot, Muriel ;

D'Agosto, Franck .

MACROMOLECULAR RAPID COMMUNICATIONS, 2007, 28 (12) :1325-1332

[9] Ab initio emulsion polymerization by RAFT-controlled self-assembly [J].

Ferguson, CJ ;

Hughes, RJ ;

Nguyen, D ;

Pham, BTT ;

Gilbert, RG ;

Serelis, AK ;

Such, CH ;

Hawkett, BS .

MACROMOLECULES, 2005, 38 (06) :2191-2204

[10] Effective ab initio emulsion polymerization under RAFT control [J].

Ferguson, CJ ;

Hughes, RJ ;

Pham, BTT ;

Hawkett, BS ;

Gilbert, RG ;

Serelis, AK ;

Such, CH .

MACROMOLECULES, 2002, 35 (25) :9243-9245

← 1 2 3 4 →