The melting behaviors of hydrogels of syndiotacticity-rich poly(viny1 alcohol) (s-PVA), derived from vinyl trifluoroacetate, during heating at various rates of rising temperature were examined. For the hydrogels with the polymer concentrations above 5 g/dL chilled at the temperatures of 0 -40Β°C, the
Melting point and heat of fusion of poly(vinyl alcohol)
β Scribed by Tubbs, Robert K.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1965
- Tongue
- English
- Weight
- 413 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0449-2951
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π SIMILAR VOLUMES
## Abstract Both the glass transition temperature and the melting point of poly(vinyl chloride have been found to increase as the temperature at which the ample is polymerized is decreased). The glass transition temperature changes from about 70Β°C. for polymer prepared at 125Β°C. to about 100Β°C. for
Heats of fusion of polyethylene-adipate, pimelate, suberate and azelaate have been determined by two methods, viz. DTA and the pressure dependence of the melting point up to 6000 bar. Degrees of crystallization were measured dilatometrically. Entropies of fusion were divided into volume and conforma