Recyclable and Degradable Poly(<italic style="font-style: italic">p</italic>-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization

Li Huang; Jie Zhang; Si-Chong Chen; Gang Wu; Yu-Zhong Wang

doi:10.1007/s10118-025-3267-0

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Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization

RESEARCH ARTICLE | Updated：2025-07-14

- Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization
- Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization
- 高分子科学（英文） 2025年43卷第6期页码：933-945
- Affiliations：
  
  The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu 610064, China
- Author bio：
  
  gangwu@scu.edu.cn (G.W.)
  yzwang@scu.edu.cn (Y.Z.W.)
- Funds：
  
  This work was financially supported by the National Key R&D Program of China (No. 2021YFB3801901), the National Natural Science Foundation of China (Nos. 52403138 and U19A2095), Institutional Research Fund from Sichuan University (No. 2020SCUNL205), Fundamental Research Funds for the Central Universities, and 111 Project (No. B20001).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3267-0.
- DOI：10.1007/s10118-025-3267-0
  中图分类号： M
- 收稿：2024-10-01，
  
  修回：2024-11-02，
  
  录用：2024-11-12，
  
  网络首发：2025-01-25，
  
  纸质出版：2025-05-20
- Accepted：
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Huang, L.; Zhang, J.; Chen, S. C.; Wu, G.; Wang, Y. Z. Recyclable and degradable poly(p-dioxanone)-based copolymer with enhanced mechanical properties by microphase-separated interface crystallization. Chinese J. Polym. Sci. 2025, 43, 933–945

Li Huang, Jie Zhang, Si-Chong Chen, et al. Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization[J]. Chinese Journal of Polymer Science, 2025, 43(6): 933-945. DOI: 10.1007/s10118-025-3267-0.
Huang, L.; Zhang, J.; Chen, S. C.; Wu, G.; Wang, Y. Z. Recyclable and degradable poly(p-dioxanone)-based copolymer with enhanced mechanical properties by microphase-separated interface crystallization. Chinese J. Polym. Sci. 2025, 43, 933–945 DOI： 10.1007/s10118-025-3267-0.

Li Huang, Jie Zhang, Si-Chong Chen, et al. Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization[J]. Chinese Journal of Polymer Science, 2025, 43(6): 933-945. DOI: 10.1007/s10118-025-3267-0. DOI：

摘要

In this paper

a degradable and recyclable PPDO-PLLA-PU copolymer was synthesized. The improved mechanical properties of the PPDO-PLLA-PU compared to PPDO-PU are associated with the rod-like distribution of PLLA phase and the crystallization of PPDO spherulites at the PLLA phase interface.

Abstract

The development of degradable and chemically recyclable polymers is a promising strategy to address pressing environmental and resource-related challenges. Despite significant progress

there is a need for continuous development of such recyclable polymers. Herein

PPDO-PLLA-PU copolymers were synthesized from poly(

-dioxanone)-diol (PPDO-diol) and poly(L-lactide)-diol (PLLA-diol) by chain extension reaction. The chemical structures and microphase structures of PPDO-PLLA-PU were characterized

and their crystalline properties

mechanical properties

and degradation behaviors were further investigated. Significantly

the distribution of PLLA phase in the copolymer matrix showed a rod-like microstructure with a slight orientation

despite the thermodynamic incompatibility of PPDO and PLLA segments. Moreover

on the basis of this microphase separation

PPDO spherulites can crystallize using the interface of the two phases as nucleation sites. Accordingly

the combined effect of above two contributes to the enhanced mechanical properties. In addition

PPDO-PLLA-PU copolymers have good processability and recyclability

making them valuable for a wide range of applications.

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Keywords

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Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization

Recyclable and Degradable Poly(p-dioxanone)-based Copolymer with Enhanced Mechanical Properties by Microphase-separated Interface Crystallization

DOI：10.1007/s10118-025-3267-0

摘要

Abstract

关键词

Keywords

references