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<p>Products of transformations of methyl methacrylate and collagen were obtained in aqueous dispersions upon photocatalysis in the presence of series of various complex metal oxides of the metals: Na, K, Cs, Rb, Bi, V, Mo, Te, Ni, W, Mn, Co, Cu, and Nb. These oxides generate hydroxyl radicals in the aqueous dispersion. A grafted copolymer of methyl methacrylate on collagen was formed in methyl methacrylate-collagen dispersions only upon the photocatalysis with catalysts NaVMoO<sub>6</sub>, KVMoO<sub>6</sub>, and CsV<sub>0.625</sub>Te<sub>1.37</sub>O<sub>6</sub>. In the other cases, trace amounts of methyl methacrylate homopolymer, a monomer of the new type (oxidation product of methyl methacrylate), and its polymer were formed, as confirmed by data acquired by scanning electron microscopy and NMR spectroscopy. In general, the directions of processes associated with transformations involving methyl methacrylate are observed, but the optimization of conditions to three-dimensional structures based on methyl methacrylate graft copolymers with collagen is reasonable for medical purposes only in the cases of three mentioned compounds.</p>

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Effect of complex metal oxides on the products of photocatalysis in reactions of methyl methacrylate and marine collagen in aqueous dispersion

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • L. L. Semenycheva,
  • Yu. A. Kursky,
  • V. O. Rumyantseva,
  • N. B. Valetova,
  • V. V. Prodaevich,
  • D. G. Fukina,
  • A. S. Belousov,
  • A. V. Mitin,
  • E. V. Suleimanov

摘要

Products of transformations of methyl methacrylate and collagen were obtained in aqueous dispersions upon photocatalysis in the presence of series of various complex metal oxides of the metals: Na, K, Cs, Rb, Bi, V, Mo, Te, Ni, W, Mn, Co, Cu, and Nb. These oxides generate hydroxyl radicals in the aqueous dispersion. A grafted copolymer of methyl methacrylate on collagen was formed in methyl methacrylate-collagen dispersions only upon the photocatalysis with catalysts NaVMoO6, KVMoO6, and CsV0.625Te1.37O6. In the other cases, trace amounts of methyl methacrylate homopolymer, a monomer of the new type (oxidation product of methyl methacrylate), and its polymer were formed, as confirmed by data acquired by scanning electron microscopy and NMR spectroscopy. In general, the directions of processes associated with transformations involving methyl methacrylate are observed, but the optimization of conditions to three-dimensional structures based on methyl methacrylate graft copolymers with collagen is reasonable for medical purposes only in the cases of three mentioned compounds.