Synthesis and Characterization of Thermotropic Liquid Crystalline Polyurethane Based on 4,4-bis(6-hydrozyhezozy)biphenyl and Aliphatic Diols

摘要：

1.Introduction Iimura and his co-workers were the first who report the synthesis of main chain thermotropic liquid crystalline polyurethanes prepared by polyaddition of 3,3-dimethyl-4,4-biphenyl diisocyanate with ω-alkanediols1. Later, thermotropic liquid crystalline polyurethanes (LCPUs) are being investigated with much interest owing to their application potential. It is well known that hard segment of thermoplastic polyurethane can form thermotropic liquid crystalline phase when properly selected diisocyanate and diol are used for polyaddition reaction5-7. This article reports on the characterization of a series of thermotropic liquid crystalline polyurethane (LCPUs) were synthesized by polyaddition reaction of 2,4-toluene diisocyanate with 4,4-bis(6-hydroxyhexoxy)biphenyl (BHHBP) and aliphatic diols in N, N-dimethylformamide (DMF) solution. Synthetic route.

关键词： liquid crystalline polyurethane synthesis

作者: Chun Wei Yongyang Gong Xianglian Yang Min Wang

作者单位: Key laboratory of new processing technology for nonferrous metals and materials,ministry of education,Guilin University of Technology,Guilin 541004,China

会议类型: 国际会议

会议名称: 18th International Symposium on Fine Chemistry and Functional Polymers,4th IUPAC International Symposium on Novel Materials and Their Synthesis(第18届国际精细化学和功能高分子学术讨论会暨第四届IUPAC 国际新型材料及其制备学术讨论会)

会议地点: 江苏镇江

会议语种:英文

页码: 162-163

在线出版日期: 2008-10-15（万方平台首次上网日期，不代表论文的发表时间）