Effect of Diluents on Poly(vinyl Acetate) Dynamics
Abstract
In the reported experiments the effect of diluents and temperature on segmental motion in poly(vinyl acetate) was investigated by both NMR and ESR spectroscopy. Three classes of diluents were studied: chloroform, a thermodynamically good solvent; water, a poor solvent which slightly swells the polymer and lowers its glass transition temperature; and decane, a nonsolvent so poor it does not appear to swell the polymer nor lower the calorimetric glass transition temperature. at all temperatures investigated each type of diluent increased the segmental motion of the polymer over that of the bulk sample. under the conditions studied, **1**3C and **2H NMR and nitroxide spin-label ESR data gave similar views of segmental motion of the polymer, indicating that in this amorphous polymer the segmental motion of the polymer may be safely inferred from spin-label data.
Recommended Citation
F. D. Blum et al., "Effect of Diluents on Poly(vinyl Acetate) Dynamics," Journal of Polymer Science. Part A-2, Polymer Physics, Wiley-Blackwell, Jan 1984.
The definitive version is available at https://doi.org/10.1002/pol.1984.180220206
Department(s)
Chemistry
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1984 Wiley-Blackwell, All rights reserved.
Publication Date
01 Jan 1984
