含氟苯并噁唑聚合物的合成  

Synthesis of Fluorine-containing Polybenzoxazole

作　　者：肖学建[1] 杨海君[1] 刘才林[1] 王会镇[1] 张军庆[1] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳621010

出　　处：《西南科技大学学报》2013年第1期17-20,共4页Journal of Southwest University of Science and Technology

基　　金：四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放基金(11zxfk10)

摘　　要：以双酚AF为原料,通过硝化和还原合成得到含氟苯并噁唑聚合物的单体2,2-双(4-羟基-3-氨基苯基)六氟丙烷(3)。将等摩尔量的对苯二甲酰氯与化合物3反应制得邻羟基酰胺聚合物5,然后再高温脱水环化即得到含氟聚苯并噁唑聚合物6。通过红外、质谱和核磁等表征手段确定了双酚AF的硝化产物2和含氟苯并噁唑聚合物单体3结构。邻羟基酰胺聚合物5及含氟聚苯并噁唑聚合物6的结构由红外表征确定。热重分析表明,含氟聚苯并噁唑聚合物6的5%失重温度为530℃,分解温度为573℃,具有良好的热稳定性。2,2 - Bis （ 3 - amino - 4 - hydroxyphenyl） hexafluoropropane （ 3 ）, which could be used for the preparation of fluorine-containing polybenzoxazoles, was synthesized by nitration and reduction starting from bisphenol AF. Reaction of compound 3 with equivalent terephthaloyl chloride gave poly （o - hydroxyamide） 5, which was further dehydrated at a high temperature giving fluorine-containing poly- benzoxazole 6. The nitration product 2 of bisphenol AF and compound 3 were determined by FTIR, ESI - MS, and 1 HNMR, and polymers 5 and 6 were characterized by FF - IR. TG indicates that polymer 6 has a good thermal stability with a 5% weight＇loss temperature of 530 ℃ and a thermal degradation tempera- ture of 573 ℃, respectively in nitrogen.

关 键 词：含氟苯并噁唑聚合物 单体 合成 热性能 

分 类 号：TQ342.734[化学工程—化纤工业]