双甲基丙烯酸聚乙二醇酯的合成及光聚合反应

合成了一系列新型的具有光引发聚合反应活性的单体；不同分子量的聚乙二醇的双甲基丙烯酸酯。单体在紫外光引发条件下进行自由基聚合，生成交联的聚合产物。用＾１Ｈ－ＮＭＲ对单体进行了表征。用ＩＲ对单体和聚合物进行了分析，研究了双甲基丙烯酸二乙二醇酯的聚合反应动力学，测定了聚合活化能。

SYNTHESIS OF POLYETHYLENEGLYCOL METHACRYLATE AND INVESTIGATION OF ITS PHOTOCHEMICAL INITIATED POLYMERIZATION

The purpose of this study was to characterize the structure of polyethyleneglycol methacrylate and investigate their photochemical initiated polymerization. A series of monomers: polyethyleneglycol methacrylate was synthesized. Their crosslinked polymers were prepared by UV light initiated polymerization. The monomers were studied by 1H NMR and IR. The crosslinked polymers were studied by IR. The 1H NMR showed that monomers had carbon carbon double bonds at both ends of the molecules. IR revealed that most of the double bond peaks disappeared after crosslinking. The UV light initiated polymerization was affected remarkably by the molecular weight of the monomer. Kinetics of polymerization was investigated and the activation energy of the polymerization was calculated.