Polydimethylsiloxane-cellulose acetate butyrate interpenetrating polymer networks synthesis and kinetic study.: Part I

被引：46

作者：

Fichet, O ^{[1
]}

Vidal, F ^{[1
]}

Laskar, J ^{[1
]}

Teyssié, D ^{[1
]}

机构：

[1] Univ Cergy Pontoise, LPPI, F-95031 Cergy Pontoise, France

来源：

POLYMER | 2005年 / 46卷 / 01期

关键词：

silicone; cellulose acetate butyrate; interpenetrating polymer network;

D O I：

10.1016/j.polymer.2004.10.053

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 synthesis of an interpenetrating polymer network (IPN) combining a polydimethylsiloxane (PDMS) network and a cellulose acetate butyrate (CAB) network is reported. The silicone network is formed through a thiol-ene addition between alpha,omega-divinyl-poly(dimethylsiloxane) and trimethylolpropane tris(3-mercaptopropionale) as a cross-linking agent. The CAB network is synthesized by pluri-isocyanate crosslinking through dibutyltindilaurate (DBTDL) catalysis. The IPN is prepared through a one pot-one shot process. Kinetic studies of the IPN synthesis showed that some thiol cross-linking functions react with DBTDL which slows down the CAB network formation by decreasing the available quantity of DBTDL catalyst. Thus, in order to obtain a transparent material withstanding the presence of thiol groups, the DBTDL content must be increased and the resulting IPN exhibits then only one transition temperature as measured by dynamic thermomechanical analysis witnessing a high level of interpenetration. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：37 / 47

页数：11

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