SURFACE-STRUCTURE OF BLEND FILMS OF STYRENE ACRYLONITRILE COPOLYMER AND POLY(METHYL METHACRYLATE)(PMMA) OR HYDROLYZED PMMA/

Citation
Wk. Lee et al., SURFACE-STRUCTURE OF BLEND FILMS OF STYRENE ACRYLONITRILE COPOLYMER AND POLY(METHYL METHACRYLATE)(PMMA) OR HYDROLYZED PMMA/, Bulletin of the Korean Chemical Society, 18(9), 1997, pp. 958-961
Citations number
13
Categorie Soggetti
Chemistry
ISSN journal
02532964
Volume
18
Issue
9
Year of publication
1997
Pages
958 - 961
Database
ISI
SICI code
0253-2964(1997)18:9<958:SOBFOS>2.0.ZU;2-4
Abstract
The compatibility and the surface structure of blends of poly(styrene- co-acrylonitrile) (SAN) with either poly (methyl methacrylate) (PMMA) or hydrolyzed PMMA (H-PMMA) were studied in terms of film thickness, i nteraction, and surface free energy difference on the basis of X-ray p hotoelectron spectroscopy (XPS), attenuated total reflection Fourier t ransform IR spectroscopy and atomic force microscopy. The. XPS measure ment showed that the surface enrichment of (PMMA/SAN) blends with diff erent AN contents of SAN and with different carboxyl acid contents of PMMA was dependent on the molecular interaction, the surface free ener gy difference between components and the sample preparation history. I t was found that the compatibility of H-PMMA and SAN was reduced with increasing carboxyl acid content of PMMA.