Synthesis and Surface Property Variations of Polypropylene-graft-poly(ethylene glycol).
Graft copolymers containing nonpolar main chains and polar side chains capable of acid-base interaction show surface property variations depending on the sample preparation methods. A series of polypropylene-graft-poly(ethylene glycol)s were synthesized and their surface property variations were studied using surface analysis techniques, such as surface contact angle measurement and X-ray photoelectron spectroscopic analysis. Molding against various substrates, dip-coating, vacuum annealing, and water-contact techniques were employed for the experiment. Different surfaces were obtained depending on the degree of acid-base interaction between the polymer surface and interfacing phase. These surface property variations were concluded to be the result of minimum interfacial free energy formation. Copyright 2001 Academic Press.
Oh
Sung Joon
SJ
Department of Materials Science and Engineering, Pohang University of Science and Technology, Kyungbuk, Pohang, 790-784, Korea
Jung
Jin Chul
JC
Zin
Wang-Cheol
WC