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Bisphenol Alternatives Derived from Renewable Substituted Phenolics
A process to synthesize renewable BPA alternatives and novel polymer systems derived from substituted phenolic compounds
Over five million metric tons of bisphenol A (BPA) are produced annually for the synthesis of plastics, such as epoxy resins, vinyl ester resins, and polycarbonates. BPA is a known endocrine disruptor and can cause adverse health effects at doses lower than the safe exposure limit of 50 µg/kg body weight/day.
This invention describes a process to synthesize renewable BPA alternatives and novel polymer systems derived from substituted phenolic compounds. These BPA alternatives can be derived from renewable resources, such as those obtained from lignin, and are designed to reduce endocrine disruption relative to BPA. The substituted phenols derived from lignin via fast pyrolysis include vanillin, vanillyl alcohol, creosol, guaiacol, and cresol. Bisguaiacol compounds are synthesized
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