Poly(vinyl alcohol) (PVA) with 55% and 61% syndiotacticity, and their related dry and hydrated gels obtained by two different freeze-thawing cycles have been investigated using the solid-state 13C CP-MAS NMR technique. From a comparative analysis of the spectra, evidence was obtained that the gelati
13C MAS n.m.r. study of solid poly(vinyl alcohol) and of ethylene-vinyl alcohol copolymers
β Scribed by Harm Ketels; Jan de Haan; Annemiek Aerdts; Geert van der Velden
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 531 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0032-3861
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Polymer blends of poly(propylene) (PP) and polyacetal (polyoxymethylene, POM) with ethylene vinyl alcohol (EVOH) copolymers were investigated by differential scanning calorimetry (DSC), rheological, tensile, and impact measurements, Fourier transform infrared spectroscopy (FTIR), and sc
## Abstract Thermal analysis of EVOH copolymers with different ethylene content, were performed by TGA/DTGA under dynamic conditions. Apparent kinetic parameters were determined using different classical kinetic approaches. The apparent activation energy values obtained confirm that thermal stabili