A. Mas et al., POLY(HYDROXYBUTYRATE-CO-9-PERCENT HYDROXYVALERATE) FILM SURFACE MODIFICATION BY AR, O-2, H2O O-2, H2O, AND H2O2 PLASMA TREATMENT/, Journal of macromolecular science. Pure and applied chemistry, A34(1), 1997, pp. 67-79
We modified poly(hydroxybutyrate-co-9% hydroxyvalerate) film surfaces
with Ar, O-2, H2O/O-2, H2O, and H2O2 vapor plasma treatments. We measu
red the grafted oxygen concentration by XPS analyses and the wettabili
ty by a theta(H2O) contact angle method. Comparison between these vari
ous plasma treatments seems to indicate a better surface wettability c
orrelated to C-OH bonds obtained with H2O and H2O2 plasma than with Ar
and O-2 plasma which incorporate oxygen atoms in C=O bonds more easil
y.