作者:Shunsuke Murahashi、Shun’ichi Nozakura、Saburo Fuji、Kiyoshi Kikukawa
DOI:10.1246/bcsj.38.1905
日期:1965.11
The preparation of divinyl carbonate has been described. The cyclopolymerization of the monomer has been studied under various reaction conditions, and it has been found that cyclopolymerization is not a predominant mode of propagation, for it leaves not less than half a mole of unsafuration per unit structure. The polymer structure has been analyzed by the infrared method and found to contain the
已经描述了碳酸二乙烯酯的制备。在各种反应条件下对单体的环聚合进行了研究,发现环聚合不是主要的增长方式,因为它在每个单元结构中留下不少于半摩尔的不饱和键。通过红外法分析聚合物结构,发现含有5元环状碳酸酯单元、6元环状碳酸酯单元和侧链不饱和碳酸酯单元。聚合温度已被证明对 5 元环单元的含量有显着影响,升高温度会导致 5 元环单元的增加。分子内 5 元环化和分子间传播之间的活化能差估计为 6.21±0。29 大卡/摩尔。在 50% 苯溶液和 8.44±0.48 kcal./mol 中聚合。在本体聚合中。