Enzymes or biocatalysts are desirable bioproducts for a sustainable society that requires energy saving, reduction of environmental damage and cost, eco-efficiency and value creation for a healthier and sustainable tomorrow.A trend that is expected to be continuing is the commercial realization and ecological interests by government agencies and the chemical industry on the use of biomass for the production of biofuels and chemicals.As an alternative to the complex lignins, aromatic acids such as phenolic acids (ferulic acid, p-coumaric acid) which are covalently bound to polysaccharides in plant cell walls mostly through ester linkages, represent an interesting and valuable resource of renewable oxygenated aromatic compounds from biomass feedstock.In this talk, the feasibility of an "aromatic acid value chain" for the production of vinyl phenols and polyvinylphenols through the use of enzymes in combination with chemical approaches is presented and discussed.