Tunable Lower Critical Solution Temperature of Poly(butyl acrylate) in Ionic Liquid Blends

Lie Chen; Jin Huang; Cong Zhao; Jia-Jia Zhou; Ming-Jie Liu

doi:10.1007/s10118-021-2522-2

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Tunable Lower Critical Solution Temperature of Poly(butyl acrylate) in Ionic Liquid Blends

ARTICLE | Updated：2020-11-26

- Tunable Lower Critical Solution Temperature of Poly(butyl acrylate) in Ionic Liquid Blends
- Chinese Journal of Polymer Science Vol. 39, Issue 5, Pages: 585-591(2021)
- Affiliations：
  
  a.Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
  b.School of Physics, Beihang University, Beijing 100191, China
  c.International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
- Author bio：
  
  liumj@buaa.edu.cn
- Funds：
- DOI：10.1007/s10118-021-2522-2
  CLC：
- Received：07 September 2020，
  
  Revised：2020-10-4，
  
  Accepted：23 October 2020，
  
  Online First：26 November 2020，
  
  Published：01 January 2021
- Accepted：
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Chen, L.; Huang, J.; Zhao, C.; Zhou, J. J.; Liu, M. J. Tunable lower critical solution temperature of poly(butyl acrylate) in ionic liquid blends. Chinese J. Polym. Sci. 2021, 39, 585–591

Lie Chen, Jin Huang, Cong Zhao, et al. Tunable Lower Critical Solution Temperature of Poly(butyl acrylate) in Ionic Liquid Blends[J]. Chinese Journal of Polymer Science, 2021, 39(5): 585-591.
Chen, L.; Huang, J.; Zhao, C.; Zhou, J. J.; Liu, M. J. Tunable lower critical solution temperature of poly(butyl acrylate) in ionic liquid blends. Chinese J. Polym. Sci. 2021, 39, 585–591 DOI： 10.1007/s10118-021-2522-2.

Lie Chen, Jin Huang, Cong Zhao, et al. Tunable Lower Critical Solution Temperature of Poly(butyl acrylate) in Ionic Liquid Blends[J]. Chinese Journal of Polymer Science, 2021, 39(5): 585-591. DOI： 10.1007/s10118-021-2522-2.

摘要

Abstract

We describe the lower critical solution temperature (LCST)-type phase behavior of poly(butyl acrylate) (PBA) dissolved in hydrophobic 1-alkyl-3-methylimidazolium bis{(trifluoromethyl) sulfonyl}amide ionic liquids (ILs). The temperature-composition phase diagrams of these PBA/ILs systems are strongly asymmetric with the critical composition shifted to low concentrations of PBA. As the molecular weight increases from 5.0×10

to 2.0×10

the critical temperature decreases by about 67 °C

and the critical composition shifts to a lower concentration. Furthermore

the LCST of PBA/ILs system increases as increasing the alkyl side chain length in the imidazolium cation. Using IL blends as solvents

the LCST of PBA can be tuned almost linearly over a wide range by varying the mixing ratio of two ionic liquids without modifying the chemical structure of the polymers.

关键词

Keywords

references

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