Crystalline Polyesters from CO2 and 2-Butyne via alpha-Methylene-beta-butyrolactone Intermediate
发表时间：2019-03-13
点击次数：
- 论文类型：
- 期刊论文
- 第一作者：
- Xu, Yue-Chao
- 通讯作者：
- Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.
- 合写作者：
- Zhou, Hui,Sun, Xing-Yu,Ren, Wei-Min,Lu, Xiao-Bing
- 发表时间：
- 2016-08-23
- 发表刊物：
- MACROMOLECULES
- 收录刊物：
- SCIE、EI、Scopus
- 文献类型：
- J
- 卷号：
- 49
- 期号：
- 16
- 页面范围：
- 5782-5787
- ISSN号：
- 0024-9297
- 摘要：
- The selective transformation of carbon dioxide into useful chemicals has attracted much attention in recent decades due to the economic and environmental benefits arising from the utilization of renewable source. Nevertheless, the reactions on incorporating CO2 into polymeric materials are very limited. The copolymerization of CO2 and alkynes to synthesize degradable polyesters is a thermodynamically unfavorable process, since the propagation step involving CO2 is a major obstacle. Herein, we report a strategy to conquer the thermodynamic and kinetic barriers for the copolymerization of CO2 and 2-butyne via alpha-methylene-beta-butyrolactone (M beta BL) intermediate. Subsequent ring-opening polymerization of the lactone intermediate mediated by achiral Salen aluminum complexes afforded syndiotacticenriched polyesters with controllable molecular weight and narrow polydispersity. Notably, the resultant syndiotactic-enriched poly(M beta BL) is a typical semicrystalline material. The present method provides access to a new class of CO2-based crystalline polymeric materials.
- 是否译文：
- 否
- 上一条：Asymmetric Alternating Copolymerization of Meso-epoxides and Cyclic Anhydrides: Efficient Access to Enantiopure Polyesters
- 下一条：Highly efficient conversion of CO2 to cyclic carbonates with a binary catalyst system in a microreactor: intensification of "electrophile-nucleophile" synergistic effect
