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Copolymers of poly(arylene sulfide sulfone)/poly(ether sulfone): Synthesis, structure, and rheology properties
Author(s) -
Yan GuangMing,
Hu Quan,
Zhang Gang,
Ren HaoHao,
Lu JieHong,
Yang Jie
Publication year - 2018
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.46534
Subject(s) - arylene , sulfone , materials science , differential scanning calorimetry , ether , polymer chemistry , copolymer , sulfide , fourier transform infrared spectroscopy , glass transition , dynamic mechanical analysis , polymer , chemical engineering , composite material , chemistry , organic chemistry , aryl , alkyl , metallurgy , thermodynamics , engineering , physics
In order to overcome the poor flowability of poly(arylene sulfide sulfone) (PASS), we introduced ether bonds into the polymer main chain. A series poly(arylene ether sulfide sulfone) copolymers (PAESS) containing different proportion of ether bonds were synthesized with 4,4′‐dichlorodiphenyl sulfone (DCDPS), sodium sulfide (Na 2 S· x H 2 O), and 4,4′‐dihydroxydiphenyl ether (DHDPE). The copolymers were characterized by Fourier transform infrared (FTIR), 1 H‐nuclear magnetic resonance (NMR), differential scanning calorimetry, dynamic mechanical analysis (DMA), and rheometer. The results of FTIR and 1 H‐NMR indicate the copolymers are synthesized successfully. PAESS were found to have excellent thermal properties with glass transition temperature ( T g ) of 175.7–219.1 °C and 5% weight lost temperature were all above 420 °C. The tensile and DMA test indicates that these resultant copolymers have good mechanical properties with tensile strength of 60 MPa and storage modulus of 1.5 GPa. From the results of rheology properties testing, we found that the melt stability and melt flowability of PASS were improved distinctly from 25,470 Pa s down to 355 Pa s with the incorporation of ether bonds. That will be quite beneficial to the processing of PASS, especially for the thermoforming of precision products. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46534.