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Adley Forti Rubira ; Edvani Curti Muniz ;Acta Scientiarum. Technology 2012, 34 2

Autor: Adriana Cristina Wenceslau

Fuente: http://www.redalyc.org/articulo.oa?id=303226535014


Introducción



Acta Scientiarum.
Technology ISSN: 1806-2563 eduem@uem.br Universidade Estadual de Maringá Brasil Wenceslau, Adriana Cristina; Forti Rubira, Adley; Curti Muniz, Edvani IPN hydrogels based on PNIPAAm and PVA-Ma networks: characterization through measure of LCST, swelling ratio and mechanical properties Acta Scientiarum.
Technology, vol.
34, núm.
2, abril-junio, 2012, pp.
233-241 Universidade Estadual de Maringá Maringá, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=303226535014 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Acta Scientiarum http:--www.uem.br-acta ISSN printed: 1679-9275 ISSN on-line: 1807-8621 Doi: 10.4025-actascitechnol.v34i2.15019 IPN hydrogels based on PNIPAAm and PVA-Ma networks: characterization through measure of LCST, swelling ratio and mechanical properties Adriana Cristina Wenceslau, Adley Forti Rubira and Edvani Curti Muniz* Grupo de Materiais Poliméricos e Compósitos, Departamento de Química, Universidade Estadual de Maringá, Av.
Colombo, 5790, 87020-970, Maringá, Paraná, Brazil.
*Author for correspondence.
E-mail: ecmuniz@uem.br; curtimuniz@gmail.com ABSTRACT.
IPN hydrogels based on chemically modified poly(vinyl alcohol) (or PVA-Ma), with different degrees of substitution (DS), and poly(N-isopropylacrylamide) (or PNIPAAm) were obtained and characterized through measures of LCST, swelling ratio and mechanical properties.
Linear PVA-Ma with several DS were obtained through the chemical reaction of PVA with glycidyl methacrylate (GMA). The DS of various PVA-Ma were determined through 1H NMR spectroscopy.
Two steps were used for preparation the PVA-Ma-PNIPAAm membrane hydrogels.
In the first step the PVA-Ma hydrogels (using PVA-Ma with different DS) were prepared by reaction of ...





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