Poly(vinyl alcohol) [MW 78,000]

Water-soluble resins of low toxicity. Resins at high % hydrolysis require heating at ~96°C in water for solution. Resins of lower % hydrolysis can be dissolved at progressively lower temperatures with 88% hydrolyzed resin requiring only 85°C for solution.
Soluble in: hot glycerol, hot glycols, hot water.

mp >220°   d 1.29   Tg 85°   MW ~78,000   99.7 mol% hydrolyzed   Polydispersity ~1.7   Viscosity of 4% aqueous solution  = 28-32 cPs   TSCA