Abstract
We report a versatile scheme for the synthesis of renewable homopolymers and block copolymers (BCPs) via the functionalization and subsequent controlled reversible addition–fragmentation chain transfer (RAFT) polymerization of vanillin, a possible lignin derivative. The vanillin-based homopolymers exhibit glass transition temperatures (120 °C) and degradation temperatures (≥300 °C) comparable to polystyrene, indicating that these and similar polymers may serve as suitable alternatives to petroleum-based materials. Additionally, by employing controlled polymerization techniques, a vanillin-based homopolymer was chain-extended with lauryl methacrylate, a model fatty acid-derived monomer, to generate nanostructured BCPs. As one example, these elastomeric copolymers can self-assemble into a body-centered cubic array of vanillin-based nanospheres in a poly(lauryl methacrylate) matrix, which we demonstrated via small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) analysis. This work pr...
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