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Spectroscopic characterization of micro‐phase separated blends of polystyrene/polymethyl methacrylate (PS/PMMA)
Author(s) -
Korakianiti Athina,
Walsh Siobhan,
Gregoriou Vasilis G.
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200450115
Subject(s) - miscibility , materials science , polystyrene , fourier transform infrared spectroscopy , polymer blend , phase (matter) , solvent , polymethyl methacrylate , chemical engineering , polymer chemistry , raman spectroscopy , composite material , analytical chemistry (journal) , polymer , copolymer , chemistry , chromatography , organic chemistry , optics , physics , engineering
Abstract An investigation of the miscibility behaviour in polystyrene/ polymethyl methacrylate (PS/PMMA) blends of various compositions under different evaporations protocols using Fourier transform infrared (FT‐IR) and Raman Spectroscopic techniques took place in the study. Solvent selection and evaporation rates, coupled with variations in the blend composition resulted in completely different miscibility behaviour for these systems. In particular, it was found that blends with low PMMA content result in systems that exhibit PMMA domains of less than 7 microns on average. Finally, depth profiling studies of the PMMA moiety in the PS matrix show that the distribution of the low content phase is highly affected by the solvent selection as well as the blend composition.