Alternating Poly(ether-<italic style="font-style: italic">alt</italic>-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units

Yu-Tao Wang; Zheng-Fei Liu; Ye Liu; Xiao-Bing Lu

doi:10.1007/s10118-026-3726-2

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Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units

Special Topic: Chirality in Polymers | Updated：2026-08-31

- Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units
- Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units
- Chinese Journal of Polymer Science 2026年44卷第9期页码：2872-2879
- Affiliations：
  
  State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- Author bio：
  
  liuye@dlut.edu.cn (Y.L.)
  xblu@dlut.edu.cn (X.B.L.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (No. 92356305) and Fundamental Research Funds for the Central Universities (No. DUT22LAB609).;The authors declare no interest conflict.Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-026-3726-2.;The data that support the findings of this study are available from the corresponding author upon reasonable request. The author's contact information: liuye@dlut.edu.cn
- DOI：10.1007/s10118-026-3726-2
  中图分类号：
- 收稿：2026-04-03，
  
  录用：2026-04-23，
  
  网络首发：2026-07-17，
  
  纸质出版：2026-09-05
- Accepted：
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Wang, Y. T.; Liu, Z. F.; Liu, Y.; Lu, X. B. Alternating poly(ether-alt-ester)s with high glass transition temperature enabled by rotationally constrained biaryl units. Chinese J. Polym. Sci. 2026, 44, 2872–2879

Yu-Tao Wang, Zheng-Fei Liu, Ye Liu, et al. Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units[J]. Chinese Journal of Polymer Science, 2026, 44(9): 2872-2879. DOI: 10.1007/s10118-026-3726-2.
Wang, Y. T.; Liu, Z. F.; Liu, Y.; Lu, X. B. Alternating poly(ether-alt-ester)s with high glass transition temperature enabled by rotationally constrained biaryl units. Chinese J. Polym. Sci. 2026, 44, 2872–2879 DOI： 10.1007/s10118-026-3726-2.

Yu-Tao Wang, Zheng-Fei Liu, Ye Liu, et al. Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units[J]. Chinese Journal of Polymer Science, 2026, 44(9): 2872-2879. DOI: 10.1007/s10118-026-3726-2. DOI：

摘要

A conformationally constrained Bringmann’s lactone undergoes strictly alternating and controlled copolymerization with meso-epoxides using a Salen-Cr(III)-Cl/MTBD catalyst system

yielding poly(ether-

alt

-ester)s with a high

of 114 °C.

Abstract

Incorporating different structural units into the polyester backbone constitutes a powerful strategy to tailor material performances. The integration of ether and ester moieties affords poly(ether-

alt

-ester)s with enhanced mechanical flexibility and tunable thermal properties. Nevertheless

the substrate scope available for the alternating copolymerization of epoxides with lactones remains considerably restricted

and the resulting polymers still suffer from inferior thermal resistance. Herein

we design a typical Bringmann’s lactone bearing a conformationally constrained biaryl axis and a helically distorted six-membered bridging scaffold. A binary catalyst system composed of simple Salen-Cr(III)-Cl and 7-methyl-1

7-triazabicyclo[4.4.0

]

dec-5-ene (MTBD) enables strictly alternating and controlled copolymerization with meso-epoxides

effectively suppressing the formation of ether-ether or ester-ester linked homopolymer sequences. This protocol yields alternating poly(ether-

alt

-ester)s with a high glass transition temperature of 114 °C

an enhancement of 57 °C relative to alternating copolymer derived from the flexible 3

4-dihydrocoumarin monomer. This approach provides a facile and practical strategy for

advancing the performance of alternating poly(ether-

alt

-ester)s.

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Keywords

references

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Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units

Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units

DOI：10.1007/s10118-026-3726-2

摘要

Abstract

关键词

Keywords

references