摘要： 用丁二酸酐对不同相对分子质量的聚碳酸酯二元醇（PCDL）进行化学改性，合成羧酸改性聚碳酸酯二元醇（CA－PCDL），进一步将改性产物与甲基丙烯酸缩水甘油酯（GMA）反应，制备一系列基于聚碳酸酯二元醇的光敏低聚物（GMA-PCDL）。酸值分析结果表明反应转化率较高，用红外光谱（FT-IR）、核磁共振氢谱（1H-NMR）、凝胶渗透色谱（GPC）对 CA－PCDL及 GMA－PCDL的结构进行了表征，结果表明反应成功合成了光敏低聚物 GMA－PCDL。分别测试不同型号 GMA－PCDL的黏度，对 GMA－PCDL进行光固化涂料配方设计并将其应用于聚碳酸酯（PC）基材，考察涂膜的各项性能，结果表明：涂膜的附着力、硬度、耐酸、耐碱性均十分优异。
关键词:
聚碳酸酯二元醇,
光固化,
GMA改性
Abstract: Carboxyl terminated polycarbonate diols prepolymers(ca-pcdl)were prepared by the reaction between PCDL and succinic anhydride. Which was then used to react with glycidyl methacrylate (GMA )to prepare the title polycarbonate-based Uv-curable resin(GMA-PCDL). Higher reaction conversion was monitored by acid value. The structure of CA-PCDI and GMA-PCDL were characterized by FT-IR, 1H-NMR and GPC. The viscosity of GMA-PCDL was also tested. The coating formulated with GMA -PCDL was applied on PC substrates and the films showed excellent properties, such as adhesion ardness and acid and alkali resistance.
Key words:
PCDL,
UV curable,
modified GMA
王 伟, 王 欢, 卢杨斌, 刘 仁, 张胜文, 刘晓亚. 基于聚碳酸酯二元醇的新型光敏树脂的合成与性能[J]. 涂料工业, 2012, 42(6): 29-33.
Wang Wei, Wang Huan, Lu Yangbin, Liu Ren, Zhang Shengwen, Liu Xiaoya. Synthesis and Properties of a Novel Polycarbonate-based Uv-curable Resin[J]. Paint & Coatings Industry, 2012, 42(6): 29-33.