应用化学 ›› 1994, Vol. 0 ›› Issue (5): 95-97.
• 研究论文 • 上一篇 下一篇
王勇, 吴大诚
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Wang Yong, Wu Dacheng
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摘要： 采用差示扫描量热仪和热台偏光显微镜研究了对羟基苯甲酸(PHB)/聚对苯二甲酸丁二酯(PBT)共聚酯的热转变行为和液晶性。结果表明,PHB/PBT共聚酯呈现多重相转变特征,这与共聚酯中存在不同程度的PBT富微区和PHB富微区有关;当PHB链节含量在20%～80%范围时,共聚酯均呈现向列型液晶特征。
关键词: PHB/PBT共聚酯, 相转变, 液晶性
Abstract: Thermal transitions and liquid crystalline properties of copolyesters based on poly(butyleneterephthalate)(PBT) and p-hydroxybenzoic acid(PHB ) were examined by DSC and hot stage polarizing microscopy. The results showed a multi-phase transition associated with PBT-rich domain and PHB-ricli domain in the copolyester. Typical nematic liquid crystalline phase of the copolyesters appeared when PHB content ranged in 20%～80%.
Key words: PHB/PBT copolyester, phase transition, liquid crystalline property
王勇, 吴大诚. 对羟基苯甲酸/聚对苯二甲酸丁二酯共聚酯的热行为及液晶性[J]. 应用化学, 1994, 0(5): 95-97.
Wang Yong, Wu Dacheng. Thermal Behavior and Liquid Crystalline Property of p-Hydroxybenzoic Acid/Poly(butyleneterephthalate) Copolyester[J]. Chinese Journal of Applied Chemistry, 1994, 0(5): 95-97.
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