高热稳定性聚膦腈亚微米球的室温快速合成  

Rapid Room Temperature Synthesis of Polyphosphazene Sub-micrometer Spheres with High Thermal Stability

作　　者：付建伟[1] 王明环[1] 王旭哲[1] 袁金苹[1] 许群[1] 

机构地区：[1]郑州大学材料科学与工程学院,郑州450001

出　　处：《应用化学》2011年第8期864-868,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(51003098;20974102;20804040);国家博士后科学基金(20100480055)资助项目

摘　　要：以六氯环三膦腈(HCCP)和4,4′-二羟基二苯砜(BPS)为共缩聚单体,乙腈为溶剂,三乙胺为缚酸剂,在室温条件下,采用沉淀聚合的方法快速合成了一种聚膦腈亚微米球。红外光谱、元素分析及X射线能谱分析(EDX)测试表明,该聚膦腈亚微米球具有高度交联的化学结构;扫描电子显微镜和透射电子显微镜测试表明,该聚膦腈亚微米球粒径分布在410 nm附近,而且具有光滑的表面和实心的结构;热重分析(TGA)测试表明,该聚膦腈亚微米球的热分解温度达到531℃。并推测了该聚膦腈亚微米球的形成机理。Polyphosphazene （PPZ） sub-micrometer spheres were prepared rapidly under room temperature v/a precipitation polymerization of hexachlorocyclotriphosphazene （ HCCP ） with 4,4＇-sulfonyldiphenol （ BIaS ）, using acetonitrile as the solvent and triethylamine （TEA） as the acid-acceptor. The PPZ sub-micrometer spheres were characterized by FT-IR, elemental analysis and EDX, and their highly cross-linked structures were identified. SEM and TEM results indicated that the PPZ sub-micrometer spheres had diameter of about 410 nm, solid structure and smooth surface. TGA result showed that the thermal decomposition temperature of the PPZ sub-micrometer spheres was about 531℃. In addition, the formation mechanism of the PPZ submicrometer spheres was proposed.

关 键 词：沉淀聚合 聚膦腈 微球 合成 

分 类 号：O634[理学—高分子化学]