BHET-PHB热致液晶聚合物的合成及表征  

Synthesis and Characterization of Thermotropic Liquid Crystalline Copolyester PET-PHB

作　　者：张毅[1] 王久芬[1] 韩亮[1] 

机构地区：[1]华北工学院化学工程系,山西太原030051

出　　处：《塑料工业》2003年第4期6-8,共3页China Plastics Industry

基　　金：山西省自然科学基金项目 (基金号 2 0 0 110 17)

摘　　要：以对苯二甲酸乙二醇酯 (BHET)和对羟基苯甲酸 (PHB)为原料 ,采用熔融缩聚法合成了BHET PHB热致液晶共聚酯。合成的共聚酯化学结构通过红外和核磁来验证 ,并用DSC、偏光显微镜和X射线衍射研究了其液晶行为 ,证明BHET -PHB共聚酯为典型的向列型液晶。Thermotropic liquid crystalline copolyesters of BHET-PHB were firstly synthesized by melting polycondensation with BHET and PHB as components.The chemical structure of the synthesized copolymer were characterized by FI-IR spectra and 1H-NMR spectra.The liquid crystalline behaviors of the polymer were studied by means of DSC,optical polariz- (Continued on page 11) (Continued from page 8) ing micrographs and wide angle X-ray diffraction.The experimental results showed that the synthesized BHET-PHB copolyester exhibited typical nematic liquid crystallinity.

关 键 词：BHET PHB 热致液晶聚合物 合成 表征 热致液晶共聚酯 熔融缩聚 向列型液晶 对苯二甲酸乙二醇酯 对羟基苯甲酸 

分 类 号：TQ317[化学工程—高聚物工业]