甲基氰乙基纤维素／二氯乙酸液晶溶液的红外研究

FTIR Study on the Methyl-Cyanoethyl Cellulose/Dichloroacetic Acid Solution

摘要: 本文用FTIR研究了甲基氰乙基纤维素/二氯乙酸溶液相转变过程中分子间相互作用的变化。发现溶液中分子之间的相互作用随溶液结构的改变而变化。随着浓度的增大,溶液由各向同性态向各向异性态转变,分子产生有序排列,导致某些氢键被增强或削弱,使基团的红外吸收谱带发生位移。当加热液晶溶液时,各向异性态向各向同性态转变,也使基团的红外吸收谱带位移。

Abstract: The molecular interactions in the methyl-cyanoethyl cellulose/dichloroacetic acid solution are studied by Fourier transform infrared spectroscopy (FTIR). It is found that the molecular interactions are related to the structures of the solution. The format