Swelling behavior of gelatin-ionic liquid functional polymers

DQ Group Author

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8 Citations (Scopus)

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 x 1 cm2; 1-mm thick) with different maturation times and at temperatures ranging from 4 to 37 degrees 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 degrees 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.
Original languageEnglish
Pages (from-to)817-825
JournalJournal Of Polymer Science Part B-Polymer Physics
Volume51
Issue number10
DOIs
Publication statusPublished - 1 Jan 2013

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