Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk

Chong He; Xiang Zhu; Xiao-Hong Li; Xiao-Ming Yang; Ying-Feng Tu

doi:10.1007/s10118-018-2161-4

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Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk

ARTICLE | Updated：2021-02-18

- Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk
- Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk
- Chinese Journal of Polymer Science 2019年37卷第1期页码：89-93
- Affiliations：
  
  Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- Author bio：
  
  tuyingfeng@suda.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21474067, 21774090), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
- DOI：10.1007/s10118-018-2161-4
  中图分类号：
- 收稿：2018-04-19，
  
  修回：2018-5-11，
  
  录用：2018-5-19，
  
  网络首发：2018-06-14，
  
  纸质出版：2019-01
- Accepted：
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Citation: He, C.; Zhu, X.; Li, X. H.; Yang, X. M.; Tu, Y. F. Thermodynamics of aromatic cyclic ester polymerization in bulk. Chinese J. Polym. Sci. 2019, 37, 89–93

Chong He, Xiang Zhu, Xiao-Hong Li, et al. Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk[J]. Chinese Journal of Polymer Science, 2019, 37(1): 89-93.
Citation: He, C.; Zhu, X.; Li, X. H.; Yang, X. M.; Tu, Y. F. Thermodynamics of aromatic cyclic ester polymerization in bulk. Chinese J. Polym. Sci. 2019, 37, 89–93 DOI： 10.1007/s10118-018-2161-4.

Chong He, Xiang Zhu, Xiao-Hong Li, et al. Thermodynamics of Aromatic Cyclic Ester Polymerization in Bulk[J]. Chinese Journal of Polymer Science, 2019, 37(1): 89-93. DOI： 10.1007/s10118-018-2161-4.

摘要

Abstract

We present here the thermodynamic investigation of

in situ

cascade polycondensation-coupling ring-opening polymerization (PROP) for three cyclic aromatic ester monomers

i.e.

cyclic oligo(2-methyl-1

3-propylene terephthalate)s (COMPTs)

cyclic oligo(neopentylene terephthalate)s (CONTs) and cyclic oligo(2-methyl-2-propyl-1

3-propylene terephthalate)s (COMPPTs). The equibrium monomer to polymer weight ratio in bulk at different polymerization temperatures for each monomer was estimated by the size exclusion chromatography (SEC)

and the thermodynamic parameters were estimated by Dainton equation. Quite different from the thermodynamics of aliphatic lactones polymerization

which is an exothermic process with entropy reduction

our results showed the polymerization thermodynamics for three cyclic aromatic ester monomers was a weak exothermic process with slight entropy increment

i.e.

a both enthalpy and entropy driving process. Among them

CONTs showed the largest value of enthalpy change

due to its symmetric dimethyl substitution on

-position of propandiol segments.

关键词

Keywords

references

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