Poly(vinyl alcohol), MW 78000, 88% hydrolyzed (PVA 78K 88%)
Polyvinyl alcohols (PVA, PVOH) are water-soluble resin of low toxicity. The water solubility primarily depends upon degree of hydrolysis of polyvinyl acetate. 87-89% hydrolyzed product have high degree of solubility, even in cold water, but for the complete dissolution heating to 85°C is required. Higher hydrolysis grade products require progressively more energy to dissolve because of their greater degree of crystallinity. For complete dissolution, these grades require heating to ~95°C.
Soluble in: DMSO, acetamide, glycols, DMF and water.
88 mol% hydrolyzed polyvinyl acetate (PVAc)Inyang, H. I., Fodor, A., Bae, S. & Mbamalu, G. Polymer Solution–Clay Interaction Effects on Contaminant Barrier Material Integrity: Part I—Solution Characteristics. Environmental Engineering Science 26, 1541–1550 (2009). doi:10.1089/ees.2009.0006
