In:
Polymers for Advanced Technologies, Wiley, Vol. 22, No. 2 ( 2011-02), p. 254-261
Abstract:
A new monomer, 4,4′‐bis(4‐phenoxybenzoyl)diphenyl(BPOBDP), was synthesized via a two‐step synthetic procedure. A series of novel poly(ether sulfone ether ketone ketone)/poly(ether ketone diphenyl ketone ether ketone ketone) copolymers were prepared by electrophilic Friedel–Crafts solution copolycondensation of isophthaloyl chloride (IPC) with a mixture of 4,4′‐diphenoxydiphenylsulfone (DPODPS) and 4,4′‐bis(4‐phenoxybenzoyl)diphenyl (BPOBDP), in the presence of anhydrous aluminum chloride and N ‐methylpyrrolidone (NMP) in 1,2‐dichloroethane (DCE). The copolymers with 10–50 mol% DPODPS are semicrystalline and have remarkably increased T g s over commercially available PEEK and PEKK. The copolymers with 40–50 mol% DPODPS had not only high T g s of 170–172°C, but also moderate T m s of 326–333°C, which are extremely suitable for melt processing. These copolymers have tensile strengths of 96.5–108.1 MPa, Young's moduli of 1.98–3.05 GPa, and elongations at break of 13–26% and exhibit excellent thermal stability and good resistance to acidity, alkali, and common organic solvents. Copyright © 2009 John Wiley & Sons, Ltd.
Type of Medium:
Online Resource
ISSN:
1042-7147
,
1099-1581
Language:
English
Publisher:
Wiley
Publication Date:
2011
detail.hit.zdb_id:
1481102-9
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