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Effect of blending on the multiple melting behavior of polyphenylene sulfide
Author(s) -
Mai Kancheng,
Mei Zhen,
Xu Jiarui,
Zeng Hanmin
Publication year - 1997
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/(sici)1097-4628(19970222)63:8<1001::aid-app6>3.0.co;2-m
Subject(s) - endotherm , peek , differential scanning calorimetry , materials science , melting point , melting temperature , annealing (glass) , sulfide , polymer chemistry , composite material , thermodynamics , polymer , metallurgy , physics
The effects of melting time ( t melt ) and annealing time ( t a ) at a temperature closer to the melting point of polyphenylene sulfide (PPS) on the multiple melting behavior of neat PPS, and PPS component in their blends have been investigated by differential scanning calorimetry (DSC). It is found that double endotherm peak of PPS annealed at 275°C for less than three hours is different from that annealed for twelve hours. Double endotherm peak of PPS in PEEK/PPS blends shifts to lower temperature, and the intensity of the upper melting peak decreases significantly by addition of polyether ether ketone (PEEK). An additional third melting peak could be observed. The temperature of third melting peak is above 310°C and increases as the t a and PEEK content are increased. For PEK‐C/PPS blends, the lower and upper melting temperatures of the PPS component are higher than that of neat PPS annealed at 275°C for twenty‐three hours. © 1996 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1001–1008, 1997