聚二乙烯基乙炔化学改性和防腐性能的研究

据重庆大学硕士学位论文 1 前言 3 Table1.1Structure data of divinylacetylene molecule Divinylacetylene r α? 0 ?? deg ? C(2) C(1) 1.347(2) C(2) C(6) H 117.8 C(7) C(6) 1.220(2) C(2) C(1) C(6) 125.4 C(2) C(6) 1.425(2) C(2) C(1) H 121.1 C H 1.097(4) 图1.1二乙烯基乙炔结构式 Fig1.1 Structure of divinylacetylene molecule 二乙烯基乙炔在聚合物中的聚合物含量、折光率、密度,分子量等参数的变化,如表1.2和 1.3。表1.2在氮气保护下80℃加热后蒸馏出的二乙烯基乙炔 Table1.2 Freshly distilled divinylacetylene was heated at 80℃under nitrogen: Time (hrs) 1 1.5 3 6 9 % non-volatile 0 4.9 8.1 11.6 18.1 n D 20 (of mixture) 1.504 1.5074 1.5092 1.5115 1.5173 表1.3在真空条件下,80℃加热二乙烯基乙炔10小时分离出的聚合物 Table1.3 Polymerfromheatingofdivinylacetylenefortenhoursat 80℃wasisolatedby evaporating monomer invacuum d D 20 n D 20 Mol.wet Fresh monomer 0.785 1.504 72 Isolated polymer 0.968 1.581 227.34 二乙烯基乙炔的质谱图,如图1.2和1.3