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采用含X-型和棒型液晶基元的两种不同单体,通过改变X-型液晶基元单体的结构和柔性链段长度,经高温溶液缩聚,合成了一系列主链型共聚液晶高分子.研究发现,所有样品都具有很好的热致液晶性及宽广的液晶态温度范围.随单体结构改变,共聚物的相转变温度大致呈规律性变化.
By using two different monomers containing X-type and rod-type liquid crystal motifs, a series of main-chain copolymerized liquid crystals were synthesized by changing the structure of the X-type liquid crystal monomer and the length of the soft segment by polycondensation at high temperature Macromolecules.The study found that all the samples have good thermotropic liquid crystal properties and a wide range of liquid crystal temperature range.With the monomer structure changes, the phase transition temperature of the copolymer changes roughly regularly.