摘要
利用DSC研究了分子结构对含硝基偶氮苯侧基的丙烯酸酯液晶聚合物玻璃化温度的影响。结果表明,随柔性间隔基长度增加,T_g降低;当引入丙烯酸甲酯(MA)作为非晶共聚组分时,T_g降低;T_g真随MA摩尔百分含量增加而降低;当引入丙烯酸作为非晶共聚组分时,T_g升高。
The glass-transition temperatures of the side chain liquid crystalline polyacrylates containing para-nitro azobenzene have been studied by DSC. It was found that the T_g value decreased with increasing the length of the spacer and MA content in the copolymers. But for the copolymers containing acrylic acid the T_g is higher than that of the corresponding homopolymers owing to the presence of hydrogen bond.
出处
《应用化学》
CSCD
北大核心
1993年第4期43-46,共4页
Chinese Journal of Applied Chemistry
基金
中国科学院重大研究项目
国家自然科学基金
关键词
液晶聚合物
共聚物
玻璃化温度
polyacrylate liquid crystalline
copolymer
glass transition temperature
