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Swelling and viscoelastic properties of new magnesium acrylate hydrogels
Author(s) -
Otegui Jon,
Fernández Emiliano,
RubioRetama Jorge,
LópezCabarcos Enrique,
Mijangos Carmen,
López Daniel
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21293
Subject(s) - self healing hydrogels , materials science , acrylate , monomer , swelling , polymer chemistry , viscoelasticity , chemical engineering , magnesium , polymer , composite material , engineering , metallurgy
In this paper, we report on the preparation of a novel poly(magnesium acrylate) (PAMGA) hydrogel by free radical homopolymerization of magnesium acrylate in aqueous solution. The effect of the concentration of monomer and initiator on the rheological and swelling properties of PAMGA hydrogels was studied. In the equilibrium of swelling, these hydrogels show a phase transition characterized by the transformation from a transparent to an opaque‐milky structure associated with a change in the viscoelastic properties of the hydrogels. The influence of the concentrations of monomer and initiator on the phase transition has been studied and the results show that the temperature of the phase transition increases with both the concentration of monomer and the concentration of initiator, the effect of the initiator being more pronounced. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers