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    ARTICLE

    Biobased Aromatic-Aliphatic Polyols from Cardanol by Thermal Thiol-Ene Reaction

    Maha L. Shrestha1, Mihail Ionescu1*, Xianmei Wan1, Nikola Bilić1, Zoran S. Petrović1, Tom Upshaw2

    Journal of Renewable Materials, Vol.6, No.1, pp. 87-101, 2018, DOI:10.7569/JRM.2017.634153

    Abstract Cardanol is a natural phenol which is obtained from high vacuum distillation of cashew nut shell liquid. It contains a hydrocarbon chain of 15 carbon atoms in the meta position, either with one, two or three non-conjugated double bonds. This article describes thermal thiol-ene reaction to synthesize new cardanol-based polyols for polyurethanes with aromatic-aliphatic structure. Phenolic hydroxyl group was blocked by alkoxylation and 2-mercaptoethanol was added to the double bonds of propoxylated cardanol. The resultant product is a mixture of polyols that may contain one, two, three or four hydroxyl groups, as a function of the More >

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