Effects of C60 on the Glass Transition Temperature of Carbazole-based Photorefractive Polyphosphazenes  

作　　者：陈百利 CHEN Shufan LUO Xuan FANG Yu ZHANG Qingjun HUANG Chuanqun DENG Qinghua 吴卫东 

机构地区：[1]Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2018年第4期974-979,共6页武汉理工大学学报（材料科学英文版）

基　　金：the National Science Foundation of China(No.11174258);the Development Foundation of China Academy of Engineering Physics(No.2013A0302016)

摘　　要：The bi-functional carbazole-based photorefractive polyphosphazenes with different content of C_（60）-doped were fabricated. The glass transition temperature（T_g） of these polymer composite materials was determined using a differential scanning calorimetric（DSC） method. According to the DSC measurement results with different heating rates, the variation of T_g and the active energy of glass transition（E_g） were analyzed in detail. The analysis results indicate that the transition region shifts to higher temperatures with increasing heating rate, and C_（60） content（below 1.0 wt%） can influence the T_g of photorefractive polyphosphazenes. The T_g first increases and then decreases with the C_（60） content（below 1.0 wt%）. The probable causes of the influence of C_（60） on T_g was proposed.The bi-functional carbazole-based photorefractive polyphosphazenes with different content of C_（60）-doped were fabricated. The glass transition temperature（T_g） of these polymer composite materials was determined using a differential scanning calorimetric（DSC） method. According to the DSC measurement results with different heating rates, the variation of T_g and the active energy of glass transition（E_g） were analyzed in detail. The analysis results indicate that the transition region shifts to higher temperatures with increasing heating rate, and C_（60） content（below 1.0 wt%） can influence the T_g of photorefractive polyphosphazenes. The T_g first increases and then decreases with the C_（60） content（below 1.0 wt%）. The probable causes of the influence of C_（60） on T_g was proposed.

关 键 词：differential scanning calorimetric （DSC） fullerene C60 carbazole-based photorefractivepolyphosphazenes glass transition temperature （Tg） active energy of glass transition （Eg） 

分 类 号：O634.51[理学—高分子化学]