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

Cláudia M.G. De Souza, Carlos N. Pacheco, Maria I.B. Tavares

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Ethylene-co-vinyl acetate and poly(vinyl acetate) blends were prepared in different proportions by melting in a HAAKE Rheomix mixer. The blends were prepared at a fixed temperature, rotation rate, and processing time. High-resolution 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 rotating frame (T1 H ρ). The miscibility between polymer chains was also studied by two-dimensional 1H-13C shift correlation (HETCOR).

Original languageEnglish (US)
Pages (from-to)221-226
Number of pages6
JournalJournal of Applied Polymer Science
Volume73
Issue number2
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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