摘要
以4,4’-联苯二酚为刚性基元,与柔性基元癸二酰氯、离子基元灿烂黄采用界面共缩聚制得系列离聚物A-LCIn(n=0,1,2,3,4).通过傅立叶转换红外光谱(FT-IR)、差示扫描量热仪(DSC)、带有热台的偏光显微镜(HS-POM)、X射线衍射(XRD)等手段对离聚物的结构、热致及溶致液晶性能、热性能进行了表征.结果表明:离聚物A-LCIn为单向性近晶A型热致液晶,在降温过程中呈现清晰的扇形织构,且在质量分数3.16%～11.54%的硫酸中均具有溶致液晶性能,其织构为柳树叶状;离子基元的加入对液晶性和液晶类型都没有影响.
A series of Ionomer A-LCIn（n=0,1,2,3,4） were synthesized by interfacial condensation reaction of 4,4＇-Biphenol,sebacoyl chloride and brilliant yellow.The structure of ionomers was characterized by means of IR.DSC,HT-POM and XRD were used to measure their thermal properties and thermotropic and lytropic liquid crystalline properties.The ionomers of A-LCIn are monotropic smectic A thermotropic mesophase,in the cooling process of a clear fan texture,and lyotropic mesophase with the mass fraction of 3.16 %～11.54 % in sulfuric acid,and were exhibited willowy leaf-shaped texture.The mesophase properties and the types of ionomers were not affected by the addition of ion element brilliant yellow.
出处
《沈阳化工大学学报》
CAS
2010年第3期240-244,共5页
Journal of Shenyang University of Chemical Technology
