K. Deyao et S. Sun, PH STIMULUS-RESPONSE OF COMPLEX-FORMING POLY[(ETHYLENE GLYCOL-CO-PROPYLENE GLYCOL)-G-ACRYLAMIDE] - CR-POLY(ACRYLIC ACID), Polymer international, 32(1), 1993, pp. 19-22
A novel interpenetrating polymer network (IPN) was synthesized on the
basis of polyhydroxy-terminated poly(ethylene glycol-co-propylene glyc
ol) chain extended with acrylamide and poly(acrylic acid) crosslinked
with N,N-methylene bisacrylamide. The study focused on the IPN's rever
sible response to pH and intelligent release behavior on pH stimulus.