Abstract
A series of plant oil based polyvinyl ethers were synthesized and evaluated as potential replacements for linseed oil in artists' paints. For hundreds of years, plant oils have been used as binders for artist paints, but due to their slow drying, yellowing, and cracking on aging the binder market has shifted to petroleum-based acrylics. In this study, plant oil vinyl ether (POVE) monomers were synthesized from linseed, soybean, and palm oils and then polymerized using cationic polymerization. The synthesized POVE monomers had color impurities that were successfully removed via distillation resulting in essentially colorless monomers. The synthesized poly(POVE)s, showed drying behavior faster than linseed oil. A similar trend was observed in the presence of drying catalysts or pigments. Drying time and viscosity were tailored by varying the molecular weight of the poly(POVE)s. Compared to linseed oil, purified poly(POVE) binders resulted in significantly lower “yellowness” when films were produced with TiO2 pigment. Pigmented films from poly(POVE)s also resulted in better mechanical properties compared to those made using linseed oil as the binder.
Published Version
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