Thermal response of poly(N-n-propylacrylamide)

Abstract

Thermal response of poly(N-n-propylacrylamide) in water and aqueous nonionic surfactant solution was studied focusing on the temperature dependence of chain dimensions by static and dynamic light scattering. Interpenetration function showed unique behavior deviating from the two-parameter theory in contrast to the case of poly(N-isopropylacrylamide). Poly(N-n-propylacrylamide) molecules may thus exhibit conformational change due to hydrophobic interaction on approaching the theta temperature.