The Effects of Monomer, Crosslinking Agent, and Filler Concentrations on the Viscoelastic and Swelling Properties of Poly(methacrylic acid) Hydrogels: A Comparison.

ABSTRACT: The present work aims at comparatively studying the effects of the concentrations of a monomer (10-30 wt% based on the whole hydrogel composition), crosslinking agent (1-3 mol% based on the monomer), and reinforcing agent (montmorillonite-MMT, 1-3 wt.% based on the whole hydrogel composition) on the swelling and viscoelastic properties of the crosslinked hydrogels prepared from methacrylic acid (MAA) and N,N'-methylenebisacrylamide (BIS) in the presence of K2S2O8 in aqueous solution. The viscoelastic measurements, carried out on the as-prepared hydrogels, showed that the monomer concentration had the largest impact, its three-time enhancement causing a 30-fold increase in the storage modulus, as compared with only a fivefold increase in the case of the crosslinking agent and 1.5-fold incre

SUBMITTER: Ninciuleanu CM 

PROVIDER: S-EPMC8124361 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature