ENHANCED TOUGHNESS AND THERMAL PROPERTIES OF POLYBENZOXAZINE BY HYBRIDIZATION WITH POLYSILOXANE

摘要：

1.IntroductionPolybenzoxazine is a new class of heat resistant phenolic resin. It shows high thermal properties, high mechanical properties and case processability. Benzoxazine monomer can be synthesized from inexpensive raw materials and polymerized simply by heat treatment through ring-opening polymerization (Scheme 1).However, polybenzoxazine shows low toughness. Multicomponent approach based on polybenzoxazine has been studied to enhance the toughness of polybenzoxazine due to its versatility. Polybenzoxazine was mixed with liquid rubber, polyurethane, polyimide, poly(imide-siloxane)s to afford toughness improvement of polybenzoxazine. Polybenzoxazine and poly(imide-siloxane)s hybrid showed enhancement on toughness and thermal properties of polybenzoxazine. Silicone is a unique heat resistant elastomer. In this study, we examine the toughness enhancement of bisphenol A-aniline type polybenzoxazine (PBa) by incorporation in-situ formed polydimethylsiloxane (PDMS) prepared by in-situ sol-gel process of diethoxydimethylsilane (DEDMS)(Scheme 1).

作者: Tsutomu Takeichi Hosta Ardhyananta Takehiro Kawauchi

作者单位: Toyohashi University of Technology,Toyohashi,Aichi,Japanl Toyohashi University of Technology,Toyohashi,Aichi,Japan

会议类型: 国际会议

会议名称: 5th International Symposium on High-Tech Polymer Materials(HTPM-V)(第五届国际高技术高分子材料学术会议)

会议地点: 北京

会议语种:英文

页码: 146-147

在线出版日期: 2008-10-27（万方平台首次上网日期，不代表论文的发表时间）