新型生物基超支化丙烯酸酯的合成及应用  

Synthesis and application of novel bio-based hyperbranched acrylates

作　　者：朱家佳 郑俊超 刘仁 刘晓亚 

机构地区：[1]江南大学化学与材料工程学院,无锡214122

出　　处：《化工新型材料》2013年第10期172-174,共3页New Chemical Materials

基　　金：江苏省产学研联合创新基金(BY2011118)

摘　　要：利用化学接枝的方法将甲基丙烯酸缩水甘油酯及叔碳酸缩水甘油酯接枝到可再生原材料单宁酸上,制备了可UV固化的生物基超支化丙烯酸酯(BHAs)。通过环氧值测定、傅里叶红外光谱分析验证了接枝反应的进行;并通过凝胶渗透色谱分析了BHAs的分子量及分子量分布;采用实时红外研究了BHAs的光固化反应过程;考察了Q-panel铝板上BHAs固化涂膜的基本性能;同时以热重分析和差示扫描量热考察了固化膜的热稳定性(Td)及玻璃化转变温度(Tg)。结果表明,BHAs固化膜具有较高的硬度、附着力及热稳定性。With a view to developing UV curable surface coatings from renewable raw materials, a series of biobased hyperbranched acrylates（BHAs）were prepared by grafting reaction of glycidyl methacrylate（GMA）,glycidyl ester of Versatic acid（E-10）and tannic acid（TA）. The epoxy groups of GMA and E-10 can be participated in the grafting reaction, and residual acrylic double bonds can carry out photopolymerization by free radical photoinitiators. Epoxy value, FTIR spectra analysis provided evidence of grafting reaction were suggested. The molecular weight （Mn）and molecular weight distribution index（PDI）of prepolymers were characterized by GPC. Curing kinetics of BHAs was studied by real time infrared spectroscopy（RTIR）, the glass transition temperature（Tg）and the thermal decomposition temperature（Td）of cured films were investigated by DSC and TGA, respectively. The results showed that the hardness, adhesion and thermal stability of cured films were excellent.

关 键 词：可再生原材料 单宁酸 超支化丙烯酸酯 UV固化涂料 

分 类 号：TQ225.241[化学工程—有机化工]