论文部分内容阅读
合成并用红外光谱法、核磁共振法和高效凝胶渗透色谱法表征了胆甾（烷）醇十一碳烯酸酯分别与庚烯１、二氧化硫进行自由基共聚合得到的一系列不同组成的三元胆甾型侧链液晶共聚砜，用温控式偏振光显微镜观测了产物的液晶性能．结果表明：随庚烯１单体单元组份含量的增加，该三元共聚砜的液晶相转变温度均降低，采用庚烯１单体参与共聚的方法可以有效地调节胆甾型侧链液晶共聚砜的热转变温度．
Synthesis and use of infrared spectroscopy, nuclear magnetic resonance and high performance gel permeation chromatography Cholesterool (alkanol) undecylenic acid ester were heptene 1, sulfur dioxide free radical copolymerization of a series of different composition Ternary cholesteric side chain liquid crystal polysulfone was used to observe the liquid crystal properties of the product with a temperature-controlled polarized light microscope. The results showed that the liquid crystal phase transition temperature of the terpolymer was decreased with the increase of the content of the monomer unit of heptene 1, and the copolymerization of heptene 1 monomer could effectively regulate the cholesteric side chain Liquid crystal polysulfone thermal transition temperature.