酶催化聚酚及其衍生物的合成和热性能  

Enzymatic Synthesis and Thermal Behaviors of Polyphenol and Its Derivative

作　　者：王宜鹏[1] 洪海兵[1] 曾科[1] 缪培凯[1] 周鸿飞[1] 刘韬[1] 杨刚[1] 

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《高分子材料科学与工程》2009年第8期5-7,共3页Polymer Materials Science & Engineering

基　　金：日本日新电机NHVC国际合作项目(07H814)

摘　　要：利用聚酚和4-硝基邻苯二甲腈的亲核取代反应,将邻苯二甲腈单元引入到了聚酚中。傅里叶转变红外光谱(FT-IR)证实了其基本的结构单元,凝胶渗透色谱法(GPC)结果显示在聚酚衍生物的合成中可能发生了一些链段的断裂。利用差示扫描量热计(DSC)和热重分析(TGA)技术对聚酚及其衍生物进行了分析,热分析结果显示聚酚衍生物的热性能较聚酚有一定的提高,预固化试验揭示了分子结构中的氰基在羟基的存在下发生了自加速热聚合,从而对聚酚衍生物的热性能提高有较大贡献。Phthalonitrile was introduced to polyphenol successfully by nudeophilic displacement reaction of 4- nitrophthalonitrile The basic structure was confirmed by FT-IR, and gel permeation chromatography （GPC） showed there were some chain-seissions for synthesized polyphenol derivative. Polyphenol and its derivative were characterized by differeneial scanning calorimetry （DSC） and thermogravemetric analysis （TGA）. The results show the thermal performance of its derivative is improved to some extent compared to polyphenol, and precuing test shows the elevation of thermal performance of polyphenol derivative is mainly contributed to the self-promoted thermal polymerization of CN group in the presence of hydroxy.

关 键 词：聚酚 邻苯二甲腈 氰基 热行为 预固化 

分 类 号：TQ316.314[化学工程—高聚物工业]