作者:Jonas Mindemark、Tim Bowden
DOI:10.1016/j.polymer.2011.10.027
日期:2011.11
comprising methyl or ethyl moieties, respectively, in the backbone. The monomers were further copolymerized with trimethylene carbonate to form random copolymers. Even among some of these random copolymers elements of semicrystallinity were found as confirmed by melting endotherms in DSC. The results clearly show that the incorporation of alkyl halide functionalities in aliphatic polycarbonates may lead
为了增加功能性脂族聚碳酸酯的多样性,合成了一系列新型的氯和溴官能的六元环状碳酸酯单体。尽管单体官能度不对称,但是单体的均聚提供了具有从熔体结晶和/或从THF溶液中沉淀的高趋势的半结晶聚碳酸酯。对于骨架中分别包含甲基或乙基部分的聚合物,熔点在90-105°C或120-155°C范围内。单体进一步与碳酸三亚甲基酯共聚形成无规共聚物。甚至在这些无规共聚物中的一些中,也发现了半结晶性元素,这通过在DSC中熔化吸热来证实。