Mainchain Semifluorinated Polymers with Ultra High Molecular Weight<italic style="font-style: italic">via</italic>Reaction-enhanced Reactivity of Intermediate (RERI) Mechanism

Jia-Sheng Wu; Wang-Meng Hou; Zhi-Jia Liu; Yi Shi; Yong-Ming Chen

doi:10.1007/s10118-023-2919-1

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Mainchain Semifluorinated Polymers with Ultra High Molecular WeightviaReaction-enhanced Reactivity of Intermediate (RERI) Mechanism

RESEARCH ARTICLE | Updated：2023-04-21

- Mainchain Semifluorinated Polymers with Ultra High Molecular WeightviaReaction-enhanced Reactivity of Intermediate (RERI) Mechanism
- Chinese Journal of Polymer Science Vol. 41, Issue 5, Pages: 760-767(2023)
- Affiliations：
  
  School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou 510006, China
- Author bio：
  
  shiyi6@mail.sysu.edu.cn
- Funds：
- DOI：10.1007/s10118-023-2919-1
  CLC：
- Received：08 November 2022，
  
  Revised：2022-11-24，
  
  Accepted：03 December 2022，
  
  Online First：11 January 2023，
  
  Published：01 May 2023
- Accepted：
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Wu, J. S.; Hou, W. M.; Liu, Z. J.; Shi, Y.; Chen, Y. M. Mainchain semifluorinated polymers with ultra high molecular weightviareaction-enhanced reactivity of intermediate (RERI) mechanism.Chinese J. Polym. Sci.2023,41, 760–767

Jia-Sheng Wu, Wang-Meng Hou, Zhi-Jia Liu, et al. Mainchain Semifluorinated Polymers with Ultra High Molecular WeightviaReaction-enhanced Reactivity of Intermediate (RERI) Mechanism[J]. Chinese Journal of Polymer Science, 2023, 41(5): 760-767. DOI: 10.1007/s10118-023-2919-1.
Wu, J. S.; Hou, W. M.; Liu, Z. J.; Shi, Y.; Chen, Y. M. Mainchain semifluorinated polymers with ultra high molecular weightviareaction-enhanced reactivity of intermediate (RERI) mechanism.Chinese J. Polym. Sci.2023,41, 760–767 DOI： 10.1007/s10118-023-2919-1.

Jia-Sheng Wu, Wang-Meng Hou, Zhi-Jia Liu, et al. Mainchain Semifluorinated Polymers with Ultra High Molecular WeightviaReaction-enhanced Reactivity of Intermediate (RERI) Mechanism[J]. Chinese Journal of Polymer Science, 2023, 41(5): 760-767. DOI: 10.1007/s10118-023-2919-1. DOI：

摘要

A rapid and highly efficient step-growth polymerization with reaction-enhanced reactivity of intermediate (RERI) mechanism based on copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction was developed to achieve the (ultra)high-molecular-weight mainchain semifluorinated polymers with diverse chemical compositions under a stoichiometric imbalance condition.

Abstract

Achieving the linear polymers with high molecular weight

via

step-growth polymerization of A

and B

monomers is significantly limited by the requirement of strict stoichiometry of two monomers when the reactivity of A and B groups are not changed during the polymerization. Herein

a unique step-growth polymerization based on copper-catalyzed azide-alkyne cycloaddition (CuAAC) with reaction-enhanced reactivity of intermediate (RERI) mechanism was developed for the preparation of mainchain semifluorinated polymers with high molecular weight. The CuAAC polymerization of bis-alkynyl-terminated fluorinated monomers (A

) and 2

2-bis(azidomethyl)propane-1

3-diyl bis(2-methylpropanoate) (BiAz

) with RERI effect at different stoichiometric ratio was systematically investigated. The results indicated that the semifluorinated polymers with ultrahigh molecular weight

MALLS

g/mol

could be efficiently synthesized by using excess molar of BiAz monomers. The resultant high-molecular-weight semifluorinated polymers show good thermostability and high hydrophobicity. In addition

the glass transition temperature (

) of these mainchain semifluorinated polymers could be tuned conveniently due to the bis-alkynyl-terminated comonomers could be consumed completely when excessive BiAz monomers were used in this this step-growth polymerization.

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Keywords

references

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Mainchain Semifluorinated Polymers with Ultra High Molecular WeightviaReaction-enhanced Reactivity of Intermediate (RERI) Mechanism

DOI：10.1007/s10118-023-2919-1

摘要

Abstract

关键词

Keywords

references