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Swelling behavior of gelatin-ionic liquid functional polymers

  1. Rui Nuno Leitão de Carvalho1,
  2. Nuno Miguel Torres Lourenço1,*,
  3. Pedro Miguel Vidinha Gomes2,
  4. Luís Joaquim Pina da Fonseca1,3

Article first published online: 30 JAN 2013

DOI: 10.1002/polb.23252

Issue

Journal of Polymer Science Part B: Polymer Physics

Journal of Polymer Science Part B: Polymer Physics

Volume 51, Issue 10, pages 817–825, 15 May 2013

Additional Information

How to Cite

de Carvalho, R. N. L., Torres Lourenço, N. M., Gomes, P. M. V. and da Fonseca, L. J. P. (2013), Swelling behavior of gelatin-ionic liquid functional polymers. J. Polym. Sci. B Polym. Phys., 51: 817–825. doi: 10.1002/polb.23252

Author Information

  1. 1

    Institute for Biotechnology and Bioengineering (IBB), Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal

  2. 2

    Departamento de Química, REQUIMTE/CQFB, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

  3. 3

    Department of Bioengineering, Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal

*Institute for Biotechnology and Bioengineering (IBB), Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal

Publication History

  1. Issue published online: 8 APR 2013
  2. Article first published online: 30 JAN 2013
  3. Manuscript Accepted: 7 JAN 2013
  4. Manuscript Revised: 20 DEC 2012
  5. Manuscript Received: 11 OCT 2012

Funded by

  • Fundação para a Ciência e Tecnologia. Grant Number: (SFRH/BD/77568/2011; SFRH/BPD/41175/2007; PTDC/EBB-EBI/099237/2008; IBB PEst – OE/EQB/LA0023/2011)

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Keywords:

  • diffusion;
  • gelatin;
  • hydrogels;
  • ionic liquids;
  • swelling;
  • thin films

Abstract

In this work, hydrogels obtained by mixing gelatin with ionic liquids (ILs) are prepared. Two different ILs, [emim][EtSO4] and [bmim][N(CN)2], are used to prepare hydrogels with different amounts of starting water and phosphate buffer content, which are used after a maturation period. The percentage of swelling in water and phosphate buffer, swelling and diffusion parameters are investigated in thin-film polymers (1 × 1 cm2; 1-mm thick) with different maturation times and at temperatures ranging from 4 to 37 °C. [emim][EtSO4] polymers show a moderate (100% weight increase) but quick swelling that reaches 80% of the equilibrium within 30 min. They are liquefied and dissolved at temperatures above 25 °C. [bmim][N(CN)2] polymers with short maturation times exhibit a similar behavior to the former, but more mature hydrogels register a very small swelling, abnormal kinetics and are more resistant to higher temperatures. © 2013 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys., 2013

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