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Rheological Monitoring of Polyacrylamide Gelation: Importance of Cross-Link Density and Temperature Damien Calvet,† Joyce Y. Wong,‡ and Suzanne Giasson*,† De´partement de Chimie et Faculte´ de Pharmacie, Universite´ de Montre´al, C.P. 6128, succursale Centre-Ville, Montre´al QC, Canada H3C 3J7, and Department of Biomedical Engineering, Boston University, 44 Cummington Street, Boston
As the amount of bentonite increased, the tanδ value of the composite gel decreased. From the rheological point of view, the composite gel of crosslinked bentonite and polyacrylamide formed a strong physical network, the elastic property was increased with the addition of more bentonite, and the network structure was more complete.