Syntheses of well-defined poly(siloxane)-b-poly(styrene) and poly(norbomene)-b-poly(styrene) block copolymers using functional alkoxyamines

被引：19
|
作者：
Miura, Y [1 ]
Sakai, Y [1 ]
Taniguchi, I [1 ]
机构：
[1] Osaka City Univ, Grad Sch Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan
来源：
POLYMER | 2003年 / 44卷 / 03期
关键词：
anionic polymerization; block copolymers; living radical polymerization;
D O I：
10.1016/S0032-3861(02)00785-1
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Functional alkoxyamines, 1-[4-(4-lithiobutoxy)phenyl]-1-(2,2,6,6-tetramethylpiperidinyl-N-oxyl)ethane (2) and 1-[4-(2-vinyloxyethoxy)phenyl]-1-(2,2,6,6-tetramethylpiperidinyl-N-oxyl)ethane (3) were prepared, and well-defined poly(hexamethylcyclotrisiloxane)-b-poly(styrene)[poly(D-3)-b-poly(St)] and poly(norbornene)-b-poly(St) [poly(NBE)-b-poly(St)] were prepared using the alkoxyamines. The first step was preparation of poly(D-3) and poly(NBE) macroinitiators, which were obtained by the ring-opening anionic polymerization of D-3 using 2 as an initiator and the ring-opening metathesis polymerization of NBE using 3 as a chain transfer. The radical polymerization of St by the poly(D-3) and poly(NBE) macroinitiators proceeded in the 'living' fashion to give well-defined poly(D-3)-b-poly(St) and poly(NBE)-b-poly(St) block copolymers. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：603 / 611
页数：9
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