摘要
以间、对苯二甲酰氯(IPC)、(TPC)、双酚芴(BHPF)和双酚A(BPA)为单体,采用相转移催化界面缩聚法合成了双酚芴型共聚芳酯(PAR-F/A)。结果表明,该系列共聚芳酯的玻璃化转变温度(Tg)和塑化温度(Ts)随双酚芴结构单元比例的增加而提高,当BHPF与BPA物质的量比为15-30比85-70时,Tg为209.5℃-228.3℃,Ts为282℃-298℃;热失重5%的温度(Td)达394℃-415℃。PAR-F/A为无定型聚集态,能溶解于常见的卤代烃和强极性非质子有机溶剂,采用流延法可制备成坚韧透明的薄膜,其拉伸强度达58 MPa-69 MPa,断裂伸长率为10.8%-12.2%,弹性模量为1.1 GPa。共聚物具有优良的耐热性能和力学性能。
Bisphenol fluorene/bisphenol A copolyarylate were synthesized by interracial polycondensation using ferephthaloyl chloride （TPC）, isophthaloyl chloride （IPC）, bisphenolA （BPA） and 9,9-his-（4-hydroxyphenyl ）- fluorene（BHPF） as monomers. The copolymer shows excellent thermal properties. When the molar ratio of BHPF and BPA is 15-30 to 85-70, the glass transition temperature（Tg） of the copolymers is in the range of 209.5 ℃ to 228.3 ℃ and melting plasticizing temperature （Ts） is between 282 ℃ to 298 ℃. The copolymer also has high thermal stability, 5% decomposition temperature is between 394 ℃ to 415 ℃ in nitrogen and increases with the molar ratio of bisphenol fluorene increasing. This series of PAR-F/A with amorphous state can be dissolved in common halogenated hydrocarbons and polar aprotic organic solvents. By casting method, tough and transparent fihn can be got. The tensile strength of film is 58MPa-69MPa, Young＇s module is 1.1GPa, the elongation at break is 10.8% -12.2%.
出处
《高分子材料科学与工程》
CSCD
北大核心
2013年第5期33-36,共4页
Polymer Materials Science & Engineering
基金
江西省教育厅科技项目(GJJ12193)
航空科学基金(2011ZF56026)
国家自然科学基金资助项目(51003044)
北京分子科学国家实验室开放课题基金
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
关键词
聚芳酯
双酚芴
双酚A
界面缩聚
合成
表征
copolyarylate
bisphenol fluorene
hisphenol A
interfacial polyeondensation
synthesis
characterization
