Structure and mechanical properties of poly(vinyl alcohol) gels swollen by various solvents
โ Scribed by Toshikazu Takigawa; Hisahiko Kashihara; Kenji Urayama; Toshiro Masuda
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 540 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
In this study, the relationship between the polymer-solvent interaction and the network structure of poly(vinyl alcohol) (PVA) gels prepared with organic solvents such as N-methylpyrrolidone (NMP) and ethylene glycol (EG) are investigated. The values of the intrinsic viscosity [ h] and Huggins const
The melting temperature of the gels of the poly(vinyl alcohol) (PVA)/ethylene glycol (EG) system was measured. It was found that the temperature was independent of the thermal hysteresis. The apparent enthalpy of the fusion of the junction, DH, was 206 kJ/mol for a high molecular weight atactic PVA
The relationships between the properties and structure are discussed for poly(vinyl alcohol)(PVA)/silica composites prepared through the sol-gel process. The composites became stiff and brittle with increasing the silica content. The properties of the composites were changed drastically at around th