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Type: Artigo de periódico
Title: Mechanicals resistance of thermosensitive hydrogels consisting of alginate-Ca2+/PNIPAAm, type semi-IPN
Author: Campese, GM
Tambourgi, EB
Guilherme, MR
de Moura, MR
Muniz, EC
Youssef, EY
Abstract: Thermosensitive hydrogels were synthesized using alginate-Ca2+, in association with a thermosensitive polymer, such as PNIPAAm. The mechanical properties of the hydrogels were determined measuring the maximum tension of deformation. With the increase of the temperature by 25 to 40 degrees C above the LCST the chains of PNIPAAm collapsed, dragging the alginate net and diminishing the size of the pores. The decrease in the size of the pores of the hydrogel was followed by an increase in the mechanicals resistance of the material.
Subject: hydrogels
Country: Brasil
Editor: Soc Brasileira Quimica
Citation: Quimica Nova. Soc Brasileira Quimica, v. 30, n. 7, n. 1649, n. 1652, 2007.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422007000700028
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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