Synthesis and characterization of hybrid nanocomposites comprising poly(vinyl alcohol) and colloidal silica
β Scribed by Mousumi De Sarkar; Paromita Deb
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 270 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0730-6679
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π SIMILAR VOLUMES
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
A series of hydrophobically modified water-soluble poly(vinyl alcohol) (PVA) polymers was prepared by grafting urethanized PVA with varying fractions of fatty acid chlorides of various chain lengths. The objective of the synthesis was to prepare polymers that can be applied to enhanced oil recovery.
Homogeneous poly(vinyl alcohol) (PVA)-silica gel polymer hybrids were prepared by in-situ hydrolysis of poly(vinyl acetate) (PVAc) in a solgel reaction mixture with tetramethoxysilane (TMOS). The degree of hydrolysis was evaluated by FTIR and 13 C CP/MAS NMR; it increased with an increase in the aci
Polyimide-silica (PI-SiO 2 ) hybrids with a nanostructure was obtained using the nonaqueous sol-gel process by polycondensation of phenyltriethoxysilane in a polyamic acid solution. Self-catalyzed hydrolysis of phenyl-substituted akoxysilane and modification on the polyimide structure are applied an