AVS 47th International Symposium
    Surface Science Wednesday Sessions
       Session SS-WeP

Paper SS-WeP31
Surface Treatment and Characterization of PMMA, PHEMA, and PHPMA

Wednesday, October 4, 2000, 11:00 am, Room Exhibit Hall C & D

Session: Poster Session
Presenter: H. Lim, Korea University
Authors: H. Lim, Korea University
Y. Lee, Korea Institute of Science and Technology
J. Cho, Hanyang University, Korea
S. Han, Korea Institute of Science and Technology
K.-J. Kim, Korea University
Correspondent: Click to Email
Poly(methyl methacrylate)(PMMA), poly(2-hydroxyethyl methacrylate)(PHEMA), and poly(2-hydroxypropyl methacylate)(PHPMA) were modified to improve the wettability using two methods: plasma treatment and Plasma Source Ion Implantation(PSII) treatment. The modified surfaces were characterized to investigate the dependence of polymer structure on the treatment conditions and hydrophobic recovery behaviors. The contact angle measurement was used to calculate the surface free energy. The polar component of surface energy is a dominant factor to improve the wettability. The changes of surface functionality were observed with XPS and ATR-IR. PSII treatment has provided much more various functional groups on the surface and deeper modified layer than plasma treatment during the same treatment time. The surface morphology was investigated by SEM and AFM after treatment. However, the severe surface alteration was not observed. The difference of experimental conditions among the polymers was interpreted by the glass transition temperature which is related to the structure of each polymer.