双环戊二烯甲基丙烯酸酯的合成及其紫外光固化性能研究

Synthesis of dicyclopentadienyl methacrylate and its UV curable properties

以双环戊二烯与甲基丙烯酸为原料,在三氟化硼乙醚络合物催化剂的作用下,合成了双环戊二烯甲基丙烯酸酯（DCPMA）,并用~1HNMR、FT-IR对产品进行了表征分析。结果表明：当n（甲基丙烯酸）：n（双环戊二烯）=1.2：1、催化剂三氟化硼乙醚的加入量为0.6%、阻聚剂对苯二酚加入量为0.4%时,产品收率达52.5%。将DCPMA用于紫外光固化涂料中,与丙烯酸羟乙酯、甲基丙烯酸羟乙酯、2-苯氧基乙基丙烯酸酯、丙烯酸异冰片酯等4种单官能度的单体相比,涂料的固化收缩率低、固化膜的耐磨性好、附着力强、热稳定性高。

Dicyclopentadienyl methacrylate was synthesized with dicyclopentadiene and methacrylic acid in presence of BF_3·Et_2O.The product was characterized by FT-IR and ~1HNMR.The experimental result showed that the yield of product was 52.5%when n（methacrylic acid）：n（dicyclopentadiene） = 1.2：1,w（BF_3·Et_2O） =0.6%and w（hydroquinone） =0.4%.In application of in UV coating,the coatings with dicyclopentadienyl methacrylate had better properties in shrinkages,adhesion,hardness,abrasion resistance and thermal stability than that of coatings with hydroxyethyl acrylate,hydroxyethyl methacrylate,2-phenoxyethyl acrylate, isobornyl acrylate respectly.