Abstract

In this work the activity of samarium(III) acetate was analyzed as a possible initiator in the ring opening polymerization of 2,2-dymetyltrimethylene carbonate. Polymerizations were carried out under solvent-free melt conditions in ampoules-like flasks, equipped with a magnetic stirrer. The effects of temperature, molar ratio monomer to initiator and reaction time on the polymerization features were analyzed. The results indicate that the samarium(III) acetate initiates the polymerization of 2,2-dymetyltrimethylene carbonate, which proceeds up to high conversion and the polymerization rate is first-order with respect to monomer concentration.

中文翻译：

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以乙酸Sa（III）为引发剂的碳酸2,2-二甲基三亚甲基酯的开环聚合

摘要

在这项工作中，分析了乙酸sa（III）的活性，将其作为碳酸2，2-二甲基三亚甲基酯的开环聚合反应中的一种可能引发剂。在无溶剂的熔融条件下，在装有电磁搅拌器的安瓿状烧瓶中进行聚合。分析了温度，单体与引发剂的摩尔比和反应时间对聚合性能的影响。结果表明，乙酸mar（III）引发碳酸2，2-二甲基三亚甲基酯的聚合反应，该聚合反应一直进行到高转化率，并且聚合速率相对于单体浓度是一级的。