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本文用傅里叶红外光谱法结合变温方法和偏振技术研究了主链型芳香共聚酯热致性高分子液晶。测定了光谱的变温性质以及液晶的有序度参数。结果表明分子链中液晶基元上苯环之间的相互作用在液晶相形成过程中起重要作用。液晶有序度参数与Roca和Yoon的理论值相一致。
In this paper, the main chain aromatic copolyester thermotropic polymer liquid crystal was studied by Fourier transform infrared spectroscopy combined with temperature-changing method and polarization technology. The temperature-changing properties of the spectrum and the degree of ordering of the liquid crystal were measured. The results show that the interaction between the benzene rings on the liquid crystal elements in the molecular chain plays an important role in the formation of the liquid crystal phase. The liquid crystal ordering parameters are consistent with the theoretical values of Roca and Yoon.