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Modification of surface structure and crystallinity in compression‐molded poly(phenylene sulfide)
Author(s) -
Radhakrishnan S.,
Nadkarni V. M.
Publication year - 1984
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760241803
Subject(s) - materials science , crystallinity , scanning electron microscope , composite material , compression molding , molding (decorative) , infrared spectroscopy , phenylene , polymer , mold , physics , quantum mechanics
The structural modifications and the changes in crystallinity of poly(phenylenesulfide) (PPS) during high‐pressure molding and curing have been investigated as a function of pressure and temperature using wide‐angle X‐ray scattering (WAXS), infrared absorption (IR) and scanning electron microscopy (SEM). It has been found that the crystalline content of the molds varies with applied pressure as P α where α is 1.5. Major changes in the IR spectra are found in the range of 800 to 600 cm −1 and attributed to structural modifications which have also been noted in the scanning electron micrographs. These various results have been mainly explained on the basis of plastic deformation and flow during the high‐pressure molding process.