检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:周丽云[1] 谢明隆[1] 詹美栋[1] 王蓉[1] 宋琤[1]
机构地区:[1]江西师范大学化学化工学院,江西南昌330022
出 处:《江西师范大学学报(自然科学版)》2013年第1期84-88,共5页Journal of Jiangxi Normal University(Natural Science Edition)
基 金:国家自然科学基金(51003044);江西省教育厅科技课题(GJJ12193);航空科学基金(2011ZF56026);2012年度国家人力资源和社会保障部归国留学生科技活动择优资助项目
摘 要:以环己酮和苯酚为原料合成高纯度的环己基双酚(BHPC),然后以BHPC、间苯二甲酰氯(IPC)和对苯二甲酰氯(TPC)为单体,采用相转移催化界面缩聚法合成共聚芳酯.用FT-IR、1H NMR、DSC、TGA及力学性能测试等对聚合物的结构和性能进行了表征.研究结果表明:在优化条件下,可制得玻璃化转变温度215.2℃、5%热失重温度480.4℃的环己基双酚型共聚芳酯.该聚芳酯具有良好的耐高温、高的透光率和紫外屏蔽性能.An improved process of synthesis of 1,1-bis-(4'-hydroxyphenyl)-cyclohexane (BHPC) from cyclohex- anone and phenol has been reported in this paper. A novel BHPC-polyarlester (PAR-C) were synthesized by means of interfacial polycodensation of BHPC, terephthaloyl chloride ( TPC ) and isophthaloyl chloride (IPC), which was catalyzed by the phase transfer catalyst. The copolymers were characterized by fourier transform infrared spectrophotometer( FT-IR), hydrogen nuclear magnetic resonance (H1 NMR), thermal gravimetric analysis (TGA) and dif ferential scanning calorimetry (DSC). The results showed that the glass transition temperature (Tg) of the copolymers is 215.2℃ and the decomposition temperature (Td) at 5% weight loss is 480.4℃ and T/i,h is 0.69. The PAR-C showed excellent thermal behavior, high light transmittance and the ultraviolet shielding performance.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.171