Premium
Syntheses and characterization of poly(phenylene sulfide)–poly(ether sulfone) block copolymers
Author(s) -
Kuang Li,
Wu Qixian,
Chen Yongrong
Publication year - 1996
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(19960829)61:9<1607::aid-app20>3.0.co;2-l
Subject(s) - copolymer , polymer chemistry , crystallinity , materials science , crystallization , condensation polymer , solubility , phenylene , thermal decomposition , sulfide , glass transition , ether , thermogravimetric analysis , chemical engineering , chemistry , polymer , organic chemistry , composite material , metallurgy , engineering
Poly(phenylene sulfide)‐poly(ether sulfone) (PPS–PES) block copolymers were synthesized by polycondensation of chloro‐terminated PPS oligomers and hydroxylic‐terminated PES oligomers at atmospheric pressure. The structure and compositions of PPS–PES block copolymers were analyzed quantitatively by FTIR spectroscopy. It was found that the contents of PES in copolymers increase with the amount of PES in the added materials; however, the quantities of PES contents in copolymers are lower than its quantities in the added materials. The solubility, crystallization behavior, and thermal properties of PPS‐PES block copolymers were studied through a solubility test, X‐ray diffraction, DSC, and TGA. It was primarily proved that the copolymers have better solubility, lower crystallinity, and higher glass transition ( T g ) than those of PPS. The nonisothermal crystallization kinetics and thermal decomposition kinetics of block copolymers were also studied; furthermore, the crystallization kinetic parameters and the activation energy of thermal decomposition were calculated. © 1996 John Wiley & Sons, Inc.