Evaluation of EVA-PVAc blend behavior by 1-D and 2-D solid-state NMR

Citation
Cmg. De Souza et al., Evaluation of EVA-PVAc blend behavior by 1-D and 2-D solid-state NMR, J APPL POLY, 73(2), 1999, pp. 221-226
Citations number
21
Categorie Soggetti
Organic Chemistry/Polymer Science","Material Science & Engineering
Journal title
JOURNAL OF APPLIED POLYMER SCIENCE
ISSN journal
00218995 → ACNP
Volume
73
Issue
2
Year of publication
1999
Pages
221 - 226
Database
ISI
SICI code
0021-8995(19990711)73:2<221:EOEBBB>2.0.ZU;2-R
Abstract
Ethylene-co-vinyl acetate and poly(vinyl acetate) blends were prepared in d ifferent proportions by melting in a HAAKE Rheomix mixer. The blends were p repared at a fixed temperature, rotation rate, and processing time. High-re solution solid-state nuclear magnetic resonance was chosen to characterize the blends with respect to structure-mobility-compatibility employing magic angle spinning with cross polarization and high-power hydrogen decoupling and the measurements of the proton spin-lattice relaxation time in the rota ting frame (T(1)(H)rho). The miscibility between polymer chains was also st udied by two-dimensional H-1-C-13 Shift correlation (HETCOR). (C) 1999 John Wiley & Sons, Inc.