P(MMA-M12-BPMA)乳液的合成及紫外吸收性能

以甲基丙烯酸甲酯(MMA)、可聚合乳化剂马来酸酐衍生物磺酸钠(M12)和可聚合紫外线吸收剂2-羟基-4-(3-甲基丙烯酰氧基-2-羟基丙氧基)苯甲酮(BPMA)为原料,采用乳液聚合方法制备了P(MMA-M12-BP-MA)共聚物乳液。通过转化率、红外光谱、以及紫外吸收光谱测定,分别研究了M12含量对聚合反应速率的影响、所得共聚产物的结构、以及共聚物乳液和共聚物紫外吸收特性。结果表明,随M12含量增大,聚合反应速率增加;BPMA含量增大有利于提高共聚物乳液和共聚物紫外吸收性能。

Studies on the synthesis and UV-resistance of P(MMA-M12-BPMA)Emulsion

In this paper,P(MMA-M12-BPMA) emulsion was synthesized by a polymerizable UV-stabilizer 2-hydroxy-4-(3-methacryloxy-2-hydroxylpropoxy)benzophenone(BPMA) and a reactive surfactant sodium sulfopropyl-laurylmaleate(M12) via emulsion polymerization.The monomer conversion measurement was used to study the influence factors of rate,Fourier transform infrared spectroscopy(FTIR) was used to determine the structure of copolymer and Utraviolet-visible absorption spectroscopy(UV-Vis) was used to study UV-resistance of copolymer and emulsion.The results indicate that the P(MMA-M12-BPMA) copolymer can be obtained by the copolymerization of MMA with M12 and BPMA,the copolymerization rate increases with the increase of M12 content,and the UV-resistance of the copolymer emulsion and copolymer can be enhanced with the increase of BPMA.The result of this study is very important for preparing polyacrylate coatings that can resistant to UV light.