Nanostructural encapsulation of iodine in polyvinyl alcohol

Bozhko, N. N.; Stolyarov, V. P.; Baranov, Nicolae; Bablyuk, E. B.; Nazarov, V. G.

doi:10.1134/s2075113310040118

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Evaporation of the common solvent from cast polymer/iodine solution forms iodine-containing polymeric film. − Miniemulsification of polymer/iodine solution in a nonsolvent for iodine, water for example, also leads to polymer hybrid particles containing iodine. − Iodine vapor permeation through polymeric films can be nominated as another approach for preparing a solid electrolyte. By iodine vapor diffusion through a polymeric film, its molecules are precipitated. − Nonetheless, the extensive application of organic solvents, a long period of solvent evaporation, and prolonged iodine vapor diffusion through polymer are the major drawbacks of the aforementioned methods, respectively. These economic and environmental problems have been the motives behind sustained scientific efforts for replacing solvent and vapor based processes with more economical and environmentally friendly approaches.…”

Section: Introductionmentioning

confidence: 99%

Emulsion Copolymerization of Methyl Methacrylate/Butyl Acrylate/Iodine System to Monosize Rubbery Nanoparticles Containing Iodine and Triiodide Mixture

Riazi

Mohammadi

2013

Ind. Eng. Chem. Res.

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Monosize poly(methyl methacrylate-co-butyl acrylate) rubbery nanoparticles, approximately 95 nm in diameter, containing iodine and triiodide with a molar ratio of 2.78 of the former to the latter, were synthesized by emulsion polymerization. Iodine and the two-monomer mixture were polymerized by sodium metabisulfite and potassium persulfate as a redox initiation system. Iodine evolution to triiodide during the copolymerization was traced by ultraviolet–visible spectroscopy. Iodine addition to the monomer mixture and its copolymerization not only reduced the copolymer average molecular weight by 30%, but also led to the formation of more MMA-enriched chains. The redox initiation system also changed 26% of initial iodine molecules into triiodide, while the rest were encapsulated as molecular iodine. During thermal annealing, the lower rate of triiodide decomposition into iodine and iodide in comparison with the iodine evaporation rate broadened both thermogravimetric and heat flow curves.

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Section: Introductionmentioning

confidence: 99%

Emulsion Copolymerization of Methyl Methacrylate/Butyl Acrylate/Iodine System to Monosize Rubbery Nanoparticles Containing Iodine and Triiodide Mixture

Riazi

Mohammadi

2013

Ind. Eng. Chem. Res.

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“…47 Its supramolecular complexes with iodine (often prepared by directly mixing, or subliming, iodine in the polymer matrix) have been studied for decades. [48][49][50][51][52] PVA is thus a perfect playground for investigating time-controlled supramolecular gelation.…”

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confidence: 99%