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Paper (German National Licenses)
Stress-enhanced transport of toluene in poly aryl ether ether ketone (PEEK) (1996)
Bognor Regis [u.a.] : Wiley-Blackwell
ISSN: 0887-6266
Keywords toluene ; fluid transport ; stress-enhanced effects ; poly(aryl ether ether ketone) ; Chemistry ; Polymer and Materials Science
Source: Wiley InterScience Backfile Collection 1832-2000
Topics: Chemistry and Pharmacology , Physics
Notes: The transport of fluids in the semicrystalline polymer, poly(aryl ether ether ketone) (PEEK), was investigated. Both solubility and rate of penetration of toluene into PEEK are markedly increased by the application of an external stress. The induction period (i.e., the time for the sorption to begin) is a function of applied stress as well as temperature and crystallinity. At 22°C in 29% crystalline PEEK the induction period was reduced from more than 2000 h to approximately 10 h whereas the solubility of toluene was increased from 9 to 44 wt % upon the application of an external tensile stress of 30 MPa. A critical stress (i.e., a stress value below which the stress-enhanced effects are not observed) was determined. The critical stress is a strong function of crystallinity and temperature. © 1996 John Wiley & Sons, Inc.
Additional Material: 5 Ill.
Type of Medium: Electronic Resource