An equation has been derived for the equilibrium swelling of sequential interpenetrating polymer networks (IPNs), which exhibit a single glass transition temperature and the two components are considered to be compatible. The properties of the equilibrium swelling and elastic modulus of sequential poly(vinyl acetate)/poly(methyl acrylate) IPNs have been discussed according to the derived equation and the Siegfried-Thomas-Sperling formula of the elastic modulus for homo IPNs. In both fully swollen and bulk states, there was favourable evidence for added physical crosslinks in poly(vinyl acetate)/poly(methyl acrylate) IPNs. The Binder-Frisch theory is also discussed.
Посилання на статтю:
Mutual entanglements in poly(vinyl acetate) / poly ( methyl acrylate ) interpenetrating polymer networks / Binyao Li*, Xiping Bi, Donghua Zhang and Fosong Wang // Polymer. – 1992. – Vol 33. – P. 2740-2743.