Synthesis of functional telechelic polydimethylsiloxanes by ion-exchangers catalysis

被引：36

作者：

Cazacu, M ^{[1
]}

Marcu, M ^{[1
]}

Vlad, A ^{[1
]}

Caraiman, D ^{[1
]}

Racles, C ^{[1
]}

机构：

[1] Petru Poni Inst Macromol Chem, R-6600 Iasi, Romania

来源：

EUROPEAN POLYMER JOURNAL | 1999年 / 35卷 / 09期

关键词：

D O I：

10.1016/S0014-3057(98)00263-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Telechelic siloxane oligomers with vinyl-, aminopropyl- methylmethacryloxy- and carboxypropyl- groups were obtained by ion-exchanger catalysed equilibration reactions between octamethylcyclotetrasiloxane and proper 1,3-difunctional disiloxanes. Depending on the nature of the functional group (i.e. acid or basic) either cation- or anion-exchangers were employed, in order to prevent catalyst deactivation and side reactions. The conditions in which oligomers with desired molecular weights can be obtained have been established. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1629 / 1635

页数：7

共 18 条

[1]

BRANDT PJA, 1985, POLYM PREPR-ACS, V26, P213

[2] EQUILIBRIUM CYCLIC COMPOSITIONS IN THE PREPARATION OF ALPHA,OMEGA-FUNCTIONALIZED POLY(DIMETHYLSILOXANES) [J].