Water soluble high syndiotactic polyvinyl alcohol

摘要

A water soluble polyvinyl alcohol copolymer having a diad syndiotacticity of greater than about 60% and less than about 70%. In some embodiments, the water soluble polyvinyl alcohol copolymer is soluble in water at a concentration of at least 1 wt % at a temperature of less than 100° C. In other embodiments, the composition is soluble in water at a concentration of at least 5 wt % at a temperature in the range from about 90° C. to less than 100° C. The high solubility of the high syndiotactic poly vinyl alcohols disclosed herein may provide various advantages as described herein, including ease of processing and decreased use of harmful solvents.

主权项

1. A composition comprising:
a water soluble polyvinyl alcohol copolymer having a diad syndiotacticity of greater than about 60% and less than about 70%, the water soluble polyvinyl alcohol polymer comprising N-vinyl pyrrolidone comonomer in an amount from about 5 mol % up to about 20 mol %; wherein the composition is soluble in water at a concentration of 6 wt % at a temperature of less than 100° C.