Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone

Wei-Min Ren; Rui-Jing Wang; Bai-Hao Ren; Ge-Ge Gu; Tian-Jun Yue

doi:10.1007/s10118-020-2413-y

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Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone

ARTICLE | Updated：2020-04-21

- Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone
- Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone
- Chinese Journal of Polymer Science 2020年38卷第9期页码：950-957
- Affiliations：
  
  State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- Author bio：
  
  wmren@dlut.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21722402 and 21674015), and the Fundamental Research Funds for the Central Universities (No. DUT18ZD105).
- DOI：10.1007/s10118-020-2413-y
  中图分类号：
- 收稿：2020-01-13，
  
  修回：2020-2-11，
  
  录用：2020-2-24，
  
  网络首发：2020-04-21，
  
  纸质出版：2020-09
- Accepted：
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Ren, W. M.; Wang, R. J.; Ren, B. H.; Gu, G. G.; Yue, T. J. Mechanism-inspired design of heterodinuclear catalysts for copolymerization of epoxide and lactone. Chinese J. Polym. Sci. 2020, 38, 950–957

Wei-Min Ren, Rui-Jing Wang, Bai-Hao Ren, et al. Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone[J]. Chinese Journal of Polymer Science, 2020, 38(9): 950-957.
Ren, W. M.; Wang, R. J.; Ren, B. H.; Gu, G. G.; Yue, T. J. Mechanism-inspired design of heterodinuclear catalysts for copolymerization of epoxide and lactone. Chinese J. Polym. Sci. 2020, 38, 950–957 DOI： 10.1007/s10118-020-2413-y.

Wei-Min Ren, Rui-Jing Wang, Bai-Hao Ren, et al. Mechanism-inspired Design of Heterodinuclear Catalysts for Copolymerization of Epoxide and Lactone[J]. Chinese Journal of Polymer Science, 2020, 38(9): 950-957. DOI： 10.1007/s10118-020-2413-y.

摘要

Abstract

Polyesters

as a class of high-performance and versatile polymer materials

often suffer from some drawbacks

such as hydrophobicity and brittleness due to their single structure nature. Thus

modifications have attracted much attention for enhancing their desirable properties

of which one efficient way is incorporating the aliphatic polyether segment into the main chain of the polyester. However

this approach is of much challenge because the obtained polyesters are problematic in either low alternating degree or low molecular weight. Herein

we describe an efficient strategy to incorporate polyether fragment into polyester by developing a novel Co-Al based heterodinuclear complex for mediating the copolymerization of propylene oxide (PO) with

-caprolactone (CL). The tracking experiments reveal that PO and CL convert into the polymer chain throughout the polymerization process. Especially

the linear increase in the molecular weight with conversion of CL indicates the controllable nature of the copolymerization. The competition polymerization

offering the monomer reactivity ratios of

= 0.96 and

= 1.04

suggests that the tendency of self-propagation or incorporation of monomers is nearly identical. Interestingly

the obtained polymers with different ether contents exhibit tunable thermal properties with enhanced decomposition temperature for the polymer with higher ether content. The newly developed heterodinuclear complex for new polymerization provides an idea to synthesize new functional polymeric materials.

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references

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