Yh. Nah et al., Effects of contact surface area of chains on the mechanical properties of poly(methylmethacrylate-co-acrylate) ionomers, POLYM BULL, 42(2), 1999, pp. 213-219
The dynamic mechanical properties of a new ionomer system, poly(methyl meth
acrylate-co-sodium acrylate), were studied. In addition, to investigate the
effect of the chemical structure of ionic group on the mechanical properti
es, the data obtained from the sodium acrylate ionomers were compared to th
ose obtained from sodium methacrylate ionomers. The matrix and cluster T-gS
for the methacrylates were found to be higher than those for the acrylates
. It was argued that the difference in the T-gS might be explained with the
concept of contact surface area of the chain.