Solvents Effect on the Structure and Properties of Thermosensitive Polyurethane/Poly(N-isopropylacrylamide) semi-Interpenetrating Polymer Networks

摘要：

poly(N-isopropylacrylamide) (PNIPPAm) is a thermally sensitive polymeric material which exhibits large volume transition at temperatures around its lower critical solution temperature (LCST). To get a thermosensitive semi-Interpenetrating Polymer Networks(semi-IPNs), N-isopropylacrylamide (NIPPAm) was dispersed and synthesized with different crosslinking agent amount in thermoplastic polyurethane(TPU) solution. The resulting films were characterized in terms of swelling ration, surface contact angle, and scanning electron micrograph (SEM). The results showed that filming medium has great affect on the structure and swelling of PU/PNIPPAm composite film and the amount of crosslinking agent influents the miscibility of PU and PNIPPAm. Ethanol as filming medium makes the phase separation behavior of PNIPPAm insignificant in the films.

关键词： polyurethane N-isoproprylacrylamide interpenetrating networks filming medium swelling

作者: Lv Haining Qian Cheng Xue Yuan Cai Zaisheng

作者单位: Dept.of Textile Dyeing & Finishing,School of Chemistry and Chemical Engineering,Donghua University,S Dept.of Textile Enginnering,College of Garment and Art Design,Jiaxing University,Jiaxing City,Zhejia Dept.of Textile Dyeing & Finishing,School of Chemistry and Chemical Engineering,Donghua University,S

会议类型: 国际会议

会议名称: 2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)

会议地点: 重庆

会议语种:英文

页码: 1166-1170

在线出版日期: 2010-09-17（万方平台首次上网日期，不代表论文的发表时间）