New copolymers were prepared by radical polymerization starting from N
-1-adamantylmaleimide (AMI) and styrene (ST). The copolymerization of
AMI with ST proceeded easily to give medium molecular weight of copoly
mers (<(M)over bar n> > 10(4)) in high yield. The poly(AMI-co-ST)s had
high Tg (205-236 degrees C) and good thermal stability. Moreover, the
poly(AMT-co-ST)s exhibited activity against the staphlococcus aureus
ATCC 25923. The monomer reactivity ratios(r(1),r(2)) in the copolymeri
zations of AMT with ST, and Alfrey-Price Q, e values for AMI were dete
rmined.