I would like to use PVA polyvinyl alcohol for applications in the field of soft-lithography. An article (Appl. Phys. Lett. 91, 123118 (2007) reports the recipe used by the authors:
"The PVA resin solution was made by dissolving 5 wt % of PVA, which has a hydrolysis degree of 87%–89% and a molecular weight of about 100 000 g/mol, in water."
I bought a PVA similar to one described in the article and I tried to prepare a solution using 0.5g of PVA and 10mL of water, but I wasn't able to completely dissolve the PVA, the solution was saturated. Does anybody know how to overcome this problem?