Jj. Chung et al., FREE-VOLUME OF SOME POLYMERIC MATERIALS IN LIQUID-EXPANDED MONOLAYER AT THE AIR-WATER-INTERFACE, Synthetic metals, 71(1-3), 1995, pp. 2011-2012
Bidimensional mixtures of polymethylmethacrylate(PMMA), poly-1-trimeth
ylsilyl-1-propyne(PTMSP) and poly-1-methyl-2-propylacetylene(PMPA) wit
h palmitic acid(PA) were studied in monolayer, in order to compare bet
ween molecular areas showed on pi-A isotherms and free volume of each
polymer. Increasing degree of negative area deviation from ideality fo
r each polymer/PA mixture monolayers were shown in the order of PMMA<P
MPA<PTMSP. This result was consistent with the order of gas permeabili
ty of these polymer reported.(1,2)