Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers

Mridula Nandi; Swagata Pan; Dipannita Ghosh; Priyadarsi De

doi:10.1007/s10118-019-2265-5

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Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers

ARTICLE | Updated：2021-02-18

- Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers
- Chinese Journal of Polymer Science Vol. 37, Issue 9, Pages: 903-911(2019)
- Affiliations：
  
  Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur - 741246, Nadia, West Bengal, India
- Author bio：
  
  p_de@iiserkol.ac.in
- Funds：
- DOI：10.1007/s10118-019-2265-5
  CLC：
- Received：15 February 2019，
  
  Revised：2019-3-20，
  
  Accepted：28 March 2019，
  
  Online First：28 May 2019，
  
  Published：2019-09
- Accepted：
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Citation: Nandi, M.; Pan, S.; Ghosh, D.; De, P. Effects of main-chain and chain-ends on the organogelation of stearoyl appended pendant valine based polymers. Chinese J. Polym. Sci. 2019, 37, 903–911

Mridula Nandi, Swagata Pan, Dipannita Ghosh, et al. Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers[J]. Chinese Journal of Polymer Science, 2019, 37(9): 903-911.
Citation: Nandi, M.; Pan, S.; Ghosh, D.; De, P. Effects of main-chain and chain-ends on the organogelation of stearoyl appended pendant valine based polymers. Chinese J. Polym. Sci. 2019, 37, 903–911 DOI： 10.1007/s10118-019-2265-5.

Mridula Nandi, Swagata Pan, Dipannita Ghosh, et al. Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers[J]. Chinese Journal of Polymer Science, 2019, 37(9): 903-911. DOI： 10.1007/s10118-019-2265-5.

摘要

Abstract

In this work

we investigated the effect of hydrophobic interactions between the polymeric backbone and chain-end groups on the self-assembly pathway of stearoyl appended side-chain valine (Val)-based poly(methacrylate/acrylate) homopolymers in different organic hydrocarbons. Gelation studies conducted revealed that while polymers with polyacrylate as backbone induces gelation in several organic hydrocarbons

polymers with polymethacrylate in the main-chain significantly hinders macroscopic gelation. Morphology of the organogels was analysed by field emission scanning electron microscopy (FESEM)

and mechanical strengths of the organogels were determined by rheological measurements. Reversible addition-fragmentation chain transfer (RAFT) polymerization chain transfer agents (CTA)s

―S―C＝(S)―S―R

] with different ―R

and ―R

groups

have been employed to study the effect of structural variation at the chain-end on macroscopic assembly mechanism. We found that the additional interactions between terminal groups

via

hydrogen-bonding or

stacking interactions or both help to build up the self-assembly pathway and thereby produces mechanically stable organogels.

关键词

Keywords

references

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