Methacrylic Acid → HCID 22610349, compound

Participants

Reaction Steps

A 25 ml reaction vessel was charged with 12 g ethyl acetate, 3.54 g (0.008 mol) TRIS, 0.26 g (0.002 mol) NVP, 0.21 g (0.002 mol) methacrylic acid (MA) and 0.08 g. 2,2′-azobis(2-methylbutanenitrile). After nitrogen flushing for 3 minutes, the vessel was closed and placed in an oil bath. The polymerization was run for 16 hours at 63-82° C. The polymer was precipitated into water, filtered, dissolved in acetone, precipitated in water and dried at 50° C. resulting in a 58% yield. The polymer was partially soluble in HMDS at 10 wt % polymer in the liquid. When cast on glass the dried film had a moderate number of domains between 0.01 mm and 0.05 mm (test defined, Examples 28-30). A 10 mil thick film of the dried polymer had a moisture vapor transmission rate of 199 g/m2/24 hr. The dried film had an elongation of 87% (test defined, Examples 15-24). When applied to human forearm the dried polymer film adhered for 3 days.

Provenance & Evidence