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Crystallization behavior of polyphenylenesulfide
Author(s) -
Budgell Derek R.,
Day Michael
Publication year - 1991
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.760311707
Subject(s) - materials science , crystallization , differential scanning calorimetry , polymer , supercooling , crystallization of polymers , phenylene , kinetics , chemical engineering , polymer chemistry , thermodynamics , composite material , physics , quantum mechanics , engineering
The crystallization behavior of poly(phenylene sulfide) (PPS) has been examined by differential scanning calorimetry as a function of melt temperature, residence time in the melt, and the presence of a liquid crystal polymer. The results suggest that the thermal history of the sample plays an important role in determining the crystallization kinetics. Short residence times at low melt temperatures and high melt temperatures alone resulted in a low value for the Avrami exponent n . The former effect was ascribed to incomplete melting of the polymer while the latter effect was attributed to thermal degradation. Blending a liquid crystal polymer, Vectra A950, with PPS had only a minor effect on the crystallization behavior.