Surface enrichment of the solution-cast poly(methyl methacrylate)/poly(vinyl acetate) blends

Won Ki Lee, Won Jei Cho, Chang Sik Ha, Atsushi Takahara, Tisato Kajiyama

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


The surface enrichment of blend films of poly(methyl methacrylate) (PMMA) and poly(vinyl acetate) (PVAc) cast from various solvents has been investigated by contact angle, X-ray photoelectron spectroscopic and attenuated total reflection Fourier transform infra-red spectroscopic measurements. The composition of each component was fixed at 50 wt%. The surfaces of miscible PMMA/PVAc blend films are found to be enriched in PVAc regardless of casting solvents. It was found that the surface enrichment of PVAc in the PMMA/PVAc blend is reduced when the as-cast blend film shows phase separation or when the phase-mixed blend is heated above the lower critical solution temperature and exhibits thermally induced phase separation.

Original languageEnglish
Pages (from-to)1229-1234
Number of pages6
Issue number6
Publication statusPublished - Mar 1995

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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