RELAXATION BEHAVIOR IN THE ALPHA-BETA SPLITTING REGION OF THE GLASS-TRANSITION IN PNBMA BY MEANS OF C-13 2D-MAS EXCHANGE NMR

Authors
DOMBERGER W REICHERT D GARWE F SCHNEIDER H DONTH E
Citation
W. Domberger et al., RELAXATION BEHAVIOR IN THE ALPHA-BETA SPLITTING REGION OF THE GLASS-TRANSITION IN PNBMA BY MEANS OF C-13 2D-MAS EXCHANGE NMR, Journal of physics. Condensed matter, 7(38), 1995, pp. 7419-7426
Citations number
23
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
7
Issue
38
Year of publication
1995
Pages
7419 - 7426
Database
ISI
SICI code
0953-8984(1995)7:38<7419:RBITAS>2.0.ZU;2-G
Abstract
Two distinct exchange rates are obtained in the splitting region of lo cal (beta) and cooperative (alpha) relaxations for poly(n butyl methac rylate) (PnBMA) by C-13 2D-MAS exchange NMR. They fit well to the shea r loss modulus traces of alpha and beta in the Arrhenius diagram.