Issue 58, 2020, Issue in Progress
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RSC Advances

A non-metal route to realize the bio-based polyester of poly(hexylene succinate): preparation conditions, side-reactions and mechanism in sulfonic acid-functionalized Brønsted acidic ionic liquids†

Chenyang Wei,a   Zhengping Liu, ORCID logo *a   Hongwei Tan, ORCID logo b   Liyan Huang ORCID logo a  and  Jun Lia  

* Corresponding authors

a BNU Key Lab of Environmentally Friendly and Functional Polymer Materials, Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
E-mail: lzp@bnu.edu.cn
Fax: +86 10 58802075
Tel: +86-10-58806896

b BNU Institute of Theoretical and Physical Chemistry, College of Chemistry, Beijing Normal University, Beijing 100875, China

Abstract

A biodegradable linear bio-based polyester of poly(hexylene succinate) was effectively prepared in non-metal sulfonic acid-functionalized Brønsted acidic ionic liquids (SFBAILs) as both the catalyst and the polymerization medium, and the processes of polycondensation and post-polycondensation in SFBAILs were also investigated. In addition, the side reactions which were detrimental to the growth of Mw of poly(hexylene succinate) were evaluated and the synthesis mechanism of poly(hexylene succinate) catalyzed by SFBAILs was discussed with the help of DFT calculations. The result shows that both the imidazole ring and the sulfonic group on cations of SFBAILs play an important role in the catalytic process.

Graphical abstract: A non-metal route to realize the bio-based polyester of poly(hexylene succinate): preparation conditions, side-reactions and mechanism in sulfonic acid-functionalized Brønsted acidic ionic liquids

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Article information

DOI
https://doi.org/10.1039/D0RA07157A
Article type
Paper
Submitted
20 Aug 2020
Accepted
16 Sep 2020
First published
24 Sep 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 35381-35388

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A non-metal route to realize the bio-based polyester of poly(hexylene succinate): preparation conditions, side-reactions and mechanism in sulfonic acid-functionalized Brønsted acidic ionic liquids

C. Wei, Z. Liu, H. Tan, L. Huang and J. Li, RSC Adv., 2020, 10, 35381 DOI: 10.1039/D0RA07157A

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