Facile Synthesis of Polycarbonate Diol<italic style="font-style: italic">via</italic>Copolymerization of CO<sub>2</sub>and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water

Xiao-Wu Wang; Ji-Wen Hui; Yu-Tao Li; Yan-Ru Gu; Zhi-Bo Li

doi:10.1007/s10118-023-2925-3

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Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water

RESEARCH ARTICLE | Updated：2023-04-21

- Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water
- Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water
- 高分子科学（英文版） 2023年41卷第5期页码：735-744
- Affiliations：
  
  a.State Key Laboratory Base of Eco-Chemical Engineering; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  b.Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department; School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Author bio：
  
  zbli@qust.edu.cn
- Funds：
  
  This work was financially supported by the National Key R&D Program of China (No. 2021YFA1501600) and the National Natural Science Foundation of China (Nos. 22175105 and 22031005).;Electronic supplementary information (ESI) is available free of charge in the online version of this article athttp://doi.org/10.1007/s10118-023-2925-3.
- DOI：10.1007/s10118-023-2925-3
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Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water[J]. 高分子科学（英文版）, 2023,41(5):735-744.

Xiao-Wu Wang, Ji-Wen Hui, Yu-Tao Li, et al. Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water[J]. Chinese Journal of Polymer Science, 2023,41(5):735-744.
Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water[J]. 高分子科学（英文版）, 2023,41(5):735-744. DOI： 10.1007/s10118-023-2925-3.

Xiao-Wu Wang, Ji-Wen Hui, Yu-Tao Li, et al. Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water[J]. Chinese Journal of Polymer Science, 2023,41(5):735-744. DOI： 10.1007/s10118-023-2925-3.

摘要

Well-defined PCHC doils can be prepared via copolymerization of CO,2,and cyclohexene oxide catalysed by a combination of one-component phosphonium borane Lewis pair and water.

Abstract

Well-defined polycarbonate diol was successfully synthesized through a strategy using a combination of organocatalyst and water. Such strategy was less developed in organocatalyzed polymerization and frequently regarded as side reactions. Herein, one-component phosphonium borane Lewis pairs,PB1,−,PB8,were successfully applied in the copolymerization of CO,2,and cyclohexene oxide (CHO) to generate poly(CHO-,alt,-CO,2,) carbonate (PCHC). Parameters of linker length and counter anion effects on the catalyst activity were investigated. It was found that Lewis pair,PB3,served as a dual initiator and catalyst in the copolymerization of CHO and CO,2,with or without the presence of water. In contrast, Lewis pair,PB8,can serve as a true catalyst for the preparation of well-defined,α,ω,-hydroxyl PCHC diols. This was achieved by introducing a labile CF,3,COO group as counter anion through anion exchange reaction while water molecules acted as chain transfer agents. The function of trifluoroacetate group in the polymerization process was investigated in detail and possible mechanism was proposed. Upon changing the amount of water and catalyst loading, PCHC diols with varied molecular weight (1.5 kg/mol to 7.5 kg/mol), low dispersities (,Ð,<,1.2) and carbonate content (,>,99%) could be easily obtained. The low molecular weight PCHC diol was used as a bifunctional macroinitiator for the ring-opening polymerization of L-lactide (LLA) to afford ABA triblock copolymer in one-pot synthesis.

关键词

Keywords

PolycarbonatePhosphonium borane Lewis pairCO2utilizationOrganocatalysisRing-opening polymerization

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Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO2and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water

Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO2and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water

DOI：10.1007/s10118-023-2925-3

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references

Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water

Facile Synthesis of Polycarbonate DiolviaCopolymerization of CO₂and Cyclohexene Oxide Catalysed by a Combination of One-Component Phosphonium Borane Lewis Pair and Water