ISSN:
0887-6266
Schlagwort(e):
Nylon-12
;
dielectric properties
;
crystallization
;
calorimetry
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
The dielectric properties of 30% crystalline dry Nylon-12 have been measured over the frequency range 10-105 Hz and temperature range 300-450 K, and the effect of its annealing at 423 K investigated both by dielectric measurement and differential scanning calorimetry. Annealing causes its crystallization to α phase, which increase the dc conductivity and decreases the contribution to orientation polarization, but does not alter the shape of the relaxation spectrum. The orientation polarization in Nylon-12 involves two processes, each of which occurs above the glass-transition temperature of Nylon-12, but only the spectra of the lowest temperature process could be clearly resolved. © 1993 John Wiley & Sons, Inc.
Zusätzliches Material:
9 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/polb.1993.090310304
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