有机氟硅改性丙烯酸酯的合成及光固化性能

Syntheses and UV-Curing Properties of Organofluoro and Silicone Modified Acrylates

利用硅氢加成反应,成功合成出有机硅、氟改性的丙烯酸酯,用核磁共振(1H-NMR)跟踪反应进程并表征产物结构,以实时红外光谱(RT-IR)研究了两种产物的光聚合动力学性质。结果表明,Si-H键转化率高,光聚合速率和最终转化率高。研究了硅、氟含量对固化膜水接触角、表面能、吸水性以及热性能的影响。光固化膜的吸水率随含氢硅油含量和全氟单体含量的增加而下降。含氢硅油的质量分数为10.86%,全氟单体的质量分数为0.96%时所得光固化单体固化后的膜具有最佳性价比。

Novel organofluoro and silicone modified acrylates were synthesized by hydrosilylation reaction. The reaction process and the products were traced and characterized by 1H nuclear magnetic resonance spectrum（1H-NMR）. The kinetic nature of UV initiated polymerization was examined by real-time infrared spectroscopy （RT-IR）. The results indicate that the conversion of Si-H bonds is higher,the UV curing rate and the conversion of final double bonds are higher. The effects of silicone,organofluoro dosage on contact angle,surface energy,water absorption ratio and thermal behavior of UV-curable films were explored. The water absorption ratio reduces as dosage of the silicone and organofluoro group increasing. The UV-gel containing the methyl hydro-silicone oil （10.86%） and perfluoroalkylethyl acrylates （0.96%） has a better ratio of cost to properties.