Synthesis of PMMA-HoVO4 nanocomposites by emulsifier-free emulsion polymerization: radical effects

• Autorzy: Bulbul B. , Pekcaliskan E. Y. , Beyaz S.

Identyfikatory

DOI

10.2478/msp-2019-0091

• Języki publikacji: EN

Abstrakty

EN

Poly(methyl methacrylate)-holmium orthovanadate (PMMA-HoVO₄) nanocomposites were synthesized using emulsifierfree emulsion polymerization system in two ways. In the first one, the HoVO₄ nanoparticle dispersion was added to the emulsion system before or after polymerization start (in situ polymerization). In the other one, nanoparticle dispersion and polymeric latex were mixed together at room temperature (blending). Crystalline HoVO₄ nanoparticles (about 60 nm) were synthesized by coprecipitation method. Three different composite latexes were synthesized by varying the potassium persulfate concentration and the time of HoVO₄ nanoparticles addition. According to the dynamic light scattering analysis, the size of the polymer beads in the latexes is between 244.8 nm and 502.5 nm and the PDI values are in the range of 0.005 to 0.206. Infrared spectral analysis showed that HoVO₄ caused some changes in the structure of the polymer. Luminescence measurements attempted to determine optical properties of the nanocomposites. The results have shown that HoVO₄ nanoparticles do not protect their structure due to the reaction with persulfate radicals but that they enter the polymer beads and change the luminescence properties of the polymer forming a new material with different properties.

Słowa kluczowe

EN

PMMA; nanocomposite; holmium orthovanadate; emulsion polymerization

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2020
• Tom: Vol. 38, No. 1
• Strony: 143--150
• Opis fizyczny: Bibliogr. 28 poz., tab., rys.

Twórcy

autor

Bulbul B.

• Department of Chemistry, Faculty of Science&Literature, Balıkesir University, Balıkesir, Turkey

autor

Pekcaliskan E. Y.

• Department of Chemistry, Faculty of Science&Literature, Balıkesir University, Balıkesir, Turkey

autor

Beyaz S.

• Department of Chemistry, Faculty of Science&Literature, Balıkesir University, Balıkesir, Turkey

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).