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Facile Access to Functional Polymer Materials via Living Lewis Pair Polymerization and Post-Polymerization
Huaiyu Wang1, Wuchao Zhao1, Jianghua He1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, China.
Abstract:
Being a versatile platform for the production of functional polymers, vinyl-containing polymers are difficult to synthesize through traditional living polymerization techniques, which typically require strict control over reaction conditions to prevent crosslinking. Herein, we employed living/controlled Lewis pair polymerization (LPP) to transform allyl methacrylate into soluble poly-(allyl methacrylate) with high molecular weights (up to M n = 1143 kg/mol) and narrow molecular weight distributions (Đ = 1.07-1.32), leaving vinyl pendants intact in every repeat unit. Well-defined block or random copolymers can be synthesized through the regulation of the position and density of the pendent vinyl sites on polymer chains. In combination with thiol-ene click reactions, different types of functional groups could be introduced to the polymeric framework, furnishing various functionalized polymers with different topologies, including photo-responsive, self-healing, or amphiphilic linear polymers, graft plastics, and cross-linked elastomers with enhanced strength and toughness. This strategy enables the preparation of vinyl-containing polymers with adjustable architectures, exhibiting promising application potentials in the synthesis of functional materials.
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