Synthesis and properties of novel phosphorus-containing thermotropic liquid crystalline copoly(ester imide)s
作者:Diana Serbezeanu、Tachita Vlad-Bubulac、Corneliu Hamciuc、Magdalena Aflori
DOI:10.1002/pola.24344
日期:2010.12.1
increasing with the content of phosphorus‐containing bisphenol. The effect of the aliphatic content on the liquid crystalline behavior was investigated by polarized light microscopy, differential scanning calorimetry, and X‐ray diffraction. The transition temperatures from crystal to liquid crystalline melt were in the range of 209–308 °C. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010
由二醇制得了一系列新型的含磷聚酯酰亚胺,这是一种新型的含芳族磷双酚的混合物,即1,4-双[ N-(4-羟基苯基)邻苯二甲酰亚胺-5-羧酸盐] -2-(6-氧化-6H-二苯并 <1,2>氧磷膦-6-基)-萘,脂肪族二醇,例如1,3-丙二醇,1,4-丁二醇,1,5-戊二醇,1,6 -己二醇和1,12-十二烷二醇-以及含有两个预先形成的酯基的芳族二酰氯,即对苯二甲酰-双(4-氧代苯甲酰氯),是通过邻二氯苯中的高温缩聚反应制得的。单体和聚合物的结构通过傅立叶变换红外(FTIR)光谱和11 H NMR光谱。改变芳香族双酚与脂肪族二醇的摩尔比可生成一系列具有特定理化性质的共聚酯酰亚胺,并建立了结构-性质关系。通过热重分析(TGA),TGA-FTIR和扫描电子显微镜评估了磷含量对热性能和阻燃性的影响。该聚合物在高达340°C的温度下均保持稳定,在340–395°C的范围内出现5%的重量损失,在370–4