CO<sub>2</sub>-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance

Yue Gong; Xiao-Feng Zhu; Guan-Wen Yang; Meng Ma; Xu Wang; Jie Xu; Xin Shu; Guang-Peng Wu

doi:10.1007/s10118-025-3261-6

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CO₂-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance

RESEARCH ARTICLE | Updated：2024-12-31

- CO₂-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance
- Chinese Journal of Polymer Science Vol. 43, Issue 1, Pages: 110-119(2025)
- Affiliations：
  
  a.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China
  b.Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
  c.Shanxi Coal Chemical Industry Technology Research Institute Co., Ltd., Xi’an 710100, China
- Author bio：
  
  yangguanwen@zju.edu.cn (G.W.Y.)
  gpwu@zju.edu.cn (G.P.W.)
- Funds：
- DOI：10.1007/s10118-025-3261-6
  CLC：
- Received：10 September 2024，
  
  Revised：2024-11-04，
  
  Accepted：05 November 2024，
  
  Online First：25 December 2024，
  
  Published：01 January 2025
- Accepted：
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Gong, Y.; Zhu, X. F.; Yang, G. W.; Ma, M.; Wang, X.; Xu, J.; Shu, X.; Wu, G. P. CO₂-sourced poly(chloropropylene carbonate) with high flame-retardant performance. Chinese J. Polym. Sci. 2025, 43, 110–119 DOI: 10.1007/s10118-025-3261-6.

Yue Gong, Xiao-Feng Zhu, Guan-Wen Yang, et al. CO₂-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance[J]. Chinese Journal of Polymer Science, 2025, 43(1): 110-119. DOI: 10.1007/s10118-025-3261-6.
Gong, Y.; Zhu, X. F.; Yang, G. W.; Ma, M.; Wang, X.; Xu, J.; Shu, X.; Wu, G. P. CO₂-sourced poly(chloropropylene carbonate) with high flame-retardant performance. Chinese J. Polym. Sci. 2025, 43, 110–119 DOI: 10.1007/s10118-025-3261-6. DOI：

Yue Gong, Xiao-Feng Zhu, Guan-Wen Yang, et al. CO₂-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance[J]. Chinese Journal of Polymer Science, 2025, 43(1): 110-119. DOI: 10.1007/s10118-025-3261-6. DOI：

摘要

This study employs an organoboron catalyst to synthesize poly(chloropropylene carbonate) (PCPC) on a hundred-gram scale via copolymerization of epichlorohydrin and CO

. The resulting material exhibits flame retardant properties

achieving UL-94 V-0 and LOI 29.1%. Moreover

we have conducted a comprehensive investigation into the flame retardant mechanism. The incorporation of 1 wt% PCPC into BPA-PC has been demonstrated to enhance flame retardancy from V-2 to V-0

thereby expanding the potential applications of CO

-based polymers in flame retardants.

Abstract

The alternating copolymer of CO

with epoxide is a green plastic that can efficiently transform CO

into valuable chemicals. Despite the significant advances made

the restricted practical application of CO

-sourced polycarbonates due to their lack of functionality has hindered field development. We successfully demonstrated the flame retardancy of poly(chloropropylene carbonate) (PCPC)

a perfectly alternating copolymer of epichlorohydrin (ECH) and CO

. This was prepared at a 200-gram scale using a high-efficacy tetranuclear organoborane catalyst. PCPC’s excellent flame-retardant performance has been proven by both the vertical combustion test (UL94 V-0) and the limiting oxygen index (LOI) value (29.1%). The underlaid flame-retardant mechanism of PCPC was clearly elucidated. As a result

we confirmed that the generated cyclic carbonates and concurrently released flame-retardant chlorine radicals

hydrogen chloride

and CO

during combustion render PCPC an excellent flame retardant. Furthermore

we investigated the practicability o

f PCPC as a halogen-rich polymeric flame retardant by blending it with commercial bisphenol A polycarbonate (BPA-PC). PCPC upgraded the flame retardancy rating of BPA polycarbonate from V-2 to V-0 even with a mere 1 wt% addition. It is our hope that this result will prove useful in future developments of advanced CO

-sourced polymeric materials.

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CO2-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance

DOI：10.1007/s10118-025-3261-6

摘要

Abstract

关键词

Keywords

references

CO₂-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance