Mechanism of Catalytic Polymerization of 2-Hydroxyethyl Methacrylate under the Influence of Vanadium(IV) Oxo Complex
An oxovanadium(IV) complex with dimethyl sulfoxide exhibits a substantial catalytic activity for the reaction of polymerization of 2-hydroxyethyl methacrylate (HEMA) with high selectivity for monomer. The complex does not catalyze polymerization of other monomers, including other methacrylates. A carbo-chain structure of polymeric HEMA is established by 13 C NMR. The resulting poly-HEMA has a narrow unimodal molecular mass distribution. It is found that the polymerization is catalytic in nature. A coordination mechanism for this polymerization is proposed.
Keywords2-hydroxyethyl methacrylate coordination polymerization vanadium
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This study was performed within topic no. 45.11 of the Federal Agency of Scientific Organizations of Russia under State assignment no. 0082-2014-0009 (State registration no. AAAA-A17-117040610309-0) and State assignment no. 0082-2014-0015 (State registration no. AAAA-A17-117032750201-9).
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