Abstract
Graft copolymers of polyacrylic acid (PAA) onto Nylon 6 and blended PAA-Nylon 6 films containing varying amounts of PAA were prepared by the direct radiation technique; aqueous solutions of acrylic acid (AA) containing cupric sulphate were exposed to various radiation doses. The percent grafting could be adjusted by varying the concentration of acrylic acid and the radiation dose, and up to 35% grafting was obtained. The PAA-Nylon 6 blend graft copolymers were tested for the pervaporation separation of acetic acid-water mixtures and gave high separation factors α(water/acetic acid) of up to 300 and good flux rates of 40-60 g/m 2-hr.
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