碳酸丙烯酯/邻苯二甲酸二甲酯二元混合溶液玻璃化转变的热分析研究  

Thermal Analysis of Glass Transition of the Binary Mixed Solution of Propylene Carbonate and Dimethyl Phthalate

作　　者：王平平 王丽娜[1,2] 何玉芬 WANG Ping-ping;WANG Li-na;HE Yu-fen(Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics,College of Physical Science and Technology,Yili Normal University,Yining,Xinjiang 835000,China;School of Physics,National Lab of Solid State Microstructures,Nanjing University,Nanjing,Jiangsu 210093,China)

机构地区：[1]伊犁师范学院物理科学与技术分院,新疆凝聚态相变与微结构实验室,新疆伊宁835000 [2]南京大学物理学院,国家固体微结构重点实验室,江苏南京210093

出　　处：《伊犁师范学院学报（自然科学版）》2018年第1期35-38,共4页Journal of Yili Normal University：Natural Science Edition

基　　金：新疆维吾尔自治区自然科学基金项目(2015211C301)

摘　　要：利用STA 449F3型同步热分析仪研究了碳酸丙烯酯(PC)和邻苯二甲酸二甲酯(DMP)及其组成的二元混合溶液的玻璃化转变过程,得到了PC/DMP二元混合溶液的玻璃化转变温度(Tg)随DMP质量分数的变化关系:随着DMP质量分数的增加,PC/DMP二元混合溶液的玻璃化转变温度升高,但是其Tg介于两纯组分Tg之间,通过对数据拟合,获得了混合溶液的Tg随DMP质量分数的增加基本呈现线性变化的规律.The glass transition process of propylene carbonate(PC),dimethyl phthalate(DMP)and the binary mixed solution composed of PC and DMP are researched by STA 449 F3 simultaneous thermal analyzer,the relationship between the glass transition temperature(Tg)of PC/DMP binary mixed solution and mass fraction of DMP are obtained.With the increase of DMP’s mass fraction,the glass transition temperature of the binary mixed solution are increase,however,the glass transition temperature of them are between Tg of two pure components.Fitted the experimental data,it is concluded that the glass transition temperature of the binary mixed solution basically shows the linear regulation with the increase of mass fraction of DMP.

关 键 词：二元混合溶液 玻璃化转变温度 热分析 DSC 

分 类 号：O551.3[理学—热学与物质分子运动论]