反应温度对N-苯基马来酰亚胺-马来酸酐二元共聚物结构及性能的影响  

Effects of Reaction Temperature on Structure and Property of N-Phenylmaleimide-Maleic Anhydride Copolymer

作　　者：赵潜 刘玉飞[1,2] 何敏[1,3] 张丽 周进[1] 杜帅 于杰[2] Qian Zhao;Yufei Liu;Min He;Li Zhang;Jin Zhou;Shuai Du;Jie Yu(College of Materials Science and Metallugry Engineering,Guizhou University,Guiyang 550025,China;National Engineering Research Center for Compounding and Modification of Polymeric Materials,Guiyang 550014,China;Guizhou Kaikete Material Co.,Ltd.Guiyang 550014,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]贵州凯科特材料有限公司,贵州贵阳550014

出　　处：《高分子材料科学与工程》2018年第11期10-15,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51663006);贵州省研究生科研基金(KYJJ2017012);贵州省教育厅自然科学研究项目(黔教合KY字[2015]359);贵州省科技计划项目(黔科合平台人才[2017]5788号)

摘　　要：以N-苯基马来酰亚胺(N-PMI)、马来酸酐(MAH)为单体,过氧化苯甲酸叔丁酯(TBPB)为引发剂,采用溶液聚合法在80～120℃合成了新型耐热改性剂N-苯基马来酰亚胺-马来酸酐二元共聚物(NMA)。通过核磁共振氢谱、傅里叶变换红外光谱对NMA进行了结构表征,证明在80～120℃之间均能制备NMA二元共聚物;采用凝胶渗透色谱法、碱液滴定法、热重分析及差示扫描量热分析对NMA二元共聚物相对分子质量、马来酸酐含量及热性能进行了分析。结果表明,当合成温度为110℃时,NMA的相对分子质量最高,相对分子质量分布最均一,热稳定性最佳;且NMA的玻璃化转化温度(Tg)随着合成温度的升高呈下降趋势。故当合成温度为110℃时,有助于N-PMI均聚结构转换为与MAH共聚结构,得到NMA二元共聚物。A new heat-resistant modifier of N-phenylmaleimide-maleic anhydride copolymers(NMA) was synthesized by solution polymerization with N-phenylmaleimide(N-PMI) and maleic anhydride(MAH) as monomer,t-butyl peroxybenzoate(TBPB) as initiator.Through the results of ~1H-NMR and FT-IR,it is shown that NMA copolymer can be prepared at the reaction temperatures ranging between 80 ℃ and 120 ℃.Moreover,the results of thermal gravimetric(TG),differential scanning calorimetry(DSC) and gel permeation chromatography(GPC) show that at the reaction temperature of 110 ℃,the molecular weight is the maximum,the distribution of weight molecular is the most uniform and the glass transition temperature(Tg) is decreased with the reaction temperature increasing.Results further prove that it contributes to synthesizing NMA copolymer at the reaction temperature of 110 ℃,and N-PMI homopolymerization structure is converted to MAH copolymer structure.

关 键 词：耐热改性剂 N-苯基马来酰亚胺 马来酸酐 N-苯基马来酰亚胺-马来酸酐二元共聚物 相对分子质量 

分 类 号：TQ314.246[化学工程—高聚物工业]