基于基的新型功能性非性CO2聚碳酸盐:合成和特性
Nikita M Maximov1, Sergey A Rzhevskiy2, Andrey F Asachenko1,2
1Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills, 1, bld. 3, 119991 Moscow, Russia.
International journal of molecular sciences
|October 29, 2025
概括
新型功能性聚碳酸盐通过环开放式共聚合物合成. 这些新材料,poly ((solketal glycidyl ether carbonate-co-propylene carbonate),具有可调节的特性,并且在去除保护后更容易降解.
科学领域:
- 聚合物化学 聚合物化学
- 有机合成 有机合成
- 材料科学 材料科学 材料科学
背景情况:
- 开发具有可控性质的功能性聚碳酸对于先进的材料应用至关重要.
- 环开聚合为合成复杂的聚合物架构提供了一种多功能途径.
- 催化系统是实现高选择性和对聚合物特性控制的关键.
研究的目的:
- 通过环开 copolymerization 合成新的功能性聚碳酸盐,聚 ((solketal glycidyl 以太碳酸盐-co-propylene 碳酸盐).
- 为了研究反应条件的影响,如添加水,在聚合物分子重量分布.
- 探索合成的基功能聚碳酸盐的特性和循环聚合行为.
主要方法:
- 索尔基特糖乙烯,氧化物和二氧化碳的环开放共聚合.
- 催化使用rac- ((salcy) CoIIIX复合物和bis ((triphenylphosphine) 微盐.
- 酸性水解用于去除索尔基特组的保护.
主要成果:
- 获得了从2 × 104到1 × 105的数值平均分子重量和狭窄的双模分离分子重量分布 (分散度为1.02-1.07) 的聚合物.
- 添加水导致具有单模分布 (分散率为1.11) 的聚合物.
- 基功能性聚碳酸盐表现为无形性质,Tg接近或低于室温,并在较温和的条件下经历了循环聚合.
结论:
- 新型功能性聚碳酸盐在受控的分子重量和分布下成功合成.
- 基团的存在增加了聚碳酸盐的可降解性.
- 这些材料有可能用于需要可降解和功能性聚合物的应用.
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