【摘要】 以含硝基偶氮苯侧基的丙烯酸酯液晶聚合物为研究对象,利用DSC、WAXD、偏光显微镜等手段研究了分子结构对侧链液晶聚合物结晶行为的影响.结果表明:丙烯酸酯类液晶聚合物的晶区是由介晶基团的规整排列形成的,大分子主链和柔性间隔基不参与结晶.随着柔性间隔基长度的增加,晶区分子排列有序性提高,结晶度增大;非晶共聚组分MA含量的增加,限制了介晶基团的有序排列,当MA含量超过83％后,只得到非晶共聚物.更多还原

【Abstract】 The crystalline behaviour of the side chain liquid crystalline polyacrylates containing para-nitro azobenzene was studied by DSC, WAXD and polarized microscopy. It was found that increasing the length of the spacer and decreasing the MA content in the copolymers can improve the crystallinity of the copolymers. The different crystalline ability of the copolymers on different substrates also reflected the effect of the non-crystalline component MA on the crystallinity of the copolymers.更多还原