液晶苯酚酯相变的研究  

STUDY ON LOW FREQUENCYINTERNAL FRICTION AND DSC MEASUREMENT FOR THE PHASETRANSITION OF LIQUID CRYSTAL CARBOXYLATE

作　　者：刘咏松[1] 水嘉鹏[1] 

机构地区：[1]中国科学院固体物理研究所内耗与固体缺陷开放研究实验室

出　　处：《材料研究学报》1999年第4期431-433,共3页Chinese Journal of Materials Research

摘　　要：用低频内耗及 Ｄ Ｓ Ｃ 方法研究了反４丁基环己基甲酸（４丙基） 环己基苯酚酯液晶的相变． 通过比较低频内耗与 Ｄ Ｓ Ｃ的激活能， 证实了液晶相变内耗峰的存在，The phase transition ofliquid crystaltrans 4 (4’ propyleyclohexyl) phenyltrans 4 butylcy clohexane carboxylate was studied by Low frequency internal friction ( I F) m ethod and D S C. The resultsshowed that the I F peak is associated with phase transition by com paring the two active energies . Themechanism of P T I Fis due to formation of phase interface .

关 键 词：液晶 相变 内耗 DSC 苯酚酯 

分 类 号：O753.2[理学—晶体学]