Artículos de revistas
Mechanicals resistance of thermosensitive hydrogels consisting of alginate-Ca2+/PNIPAAm, type semi-IPN
Registro en:
Quimica Nova. Soc Brasileira Quimica, v. 30, n. 7, n. 1649, n. 1652, 2007.
0100-4042
WOS:000251319200028
10.1590/S0100-40422007000700028
Autor
Campese, GM
Tambourgi, EB
Guilherme, MR
de Moura, MR
Muniz, EC
Youssef, EY
Institución
Resumen
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. 30 7 1649 1652