Premium
XPS surface studies of injection‐molded poly(phenylene ether)/nylon 6,6 and poly(phenylene ether)/HIPS blends
Author(s) -
Bhatia Qamar S.,
Burrell Michael C.,
Chera J. J.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070461104
Subject(s) - materials science , phenylene , x ray photoelectron spectroscopy , copolymer , ether , polymer blend , compounding , surface energy , molding (decorative) , polymer chemistry , poly(p phenylene) , composite material , extrusion , solvent , phase (matter) , chemical engineering , polymer , chemistry , organic chemistry , engineering
The surface compositions of a series of poly(phenylene ether)/nylon 6,6 blends (PPE/PA), and PPE/HIPS blends, prepared by melt compounding and injection molding, have been quantitatively measured using XPS. For PPE/PA blends, the surface is dominated by the PA component for blends containing more than 25 wt % PA in the bulk. The enrichment of the PA component, which is actually the component of highest surface free energy, is rationalized in terms of the bulk morphology that consists of PPE domains in a PA continuous phase. Blends prepared by reactive extrusion processes, which form compatibilizing PPE/PA copolymers, show a decrease in surface PA enrichment with increasing copolymer content in the final blend. PPE/HIPS blends have a surface composition equal to the formulated value over the entire composition range, for both molded and solvent cast blends. The addition of 5% PVME to a 60/40 PPE/HIPS blend results in a molded surface containing 35–40 wt % PVME. © 1992 John Wiley & Sons, Inc.