Polymerization assisted by upconversion nanoparticles under NIR light
Demina P., Arkharova N., Asharchuk I., Khaydukov K., Karimov D., Rocheva V., Nechaev A., Grigoriev Y., Generalova A., Khaydukov E. V.
Molecules
Vol.24, Issue13, Num.2476
Опубликовано: 2019
Тип ресурса: Статья
DOI:10.3390/molecules24132476
Аннотация:
Photopolymerization of nanocomposite materials using near infrared light is one of the unique technologies based on the luminescent properties of lanthanide-doped upconversion nanoparticles (UCNPs). We explored the UCNP-triggered radical polymerization both in oligomer bulk and on the nanoparticle surface in aqueous dispersion. Core/shell UCNPs NaYF4:Yb3+ and Tm3+/NaYF4 with emitting lines in the ultraviolet and blue regions were used to activate a photoinitiator. The study of the bulk photopolymerization in an initially homogeneous reaction mixture showed the UCNP redistribution due to gradient density occurring in the volume, which led to formation of UCNP superlattices and spheres “frozen” in a polymer matrix. We also developed a strategy of “grafting from” the surface, providing polymer shell growth directly on the nanoparticles. The photosensitization of the endogenous water-soluble photoinitiator riboflavin by the resonance energy transfer from UCNPs was demonstrated in the cours
Ключевые слова:
Nanocomposite materials; NIR light; Photopolymerization; Surface modification; Upconversion nanoparticles
epoxide; glycidyl methacrylate; macrogol; methacrylic acid; nanoparticle; poly(ethylene glycol)diacrylate; polymer; chemistry; hydrodynamics; infrared radiation; particle size; polymerization; thermodynamics; ultrastructure; Epoxy Compounds; Hydrodynamics; Infrared Rays; Methacrylates; Nanoparticles; Particle Size; Polyethylene Glycols; Polymerization; Polymers; Thermodynamics
Язык текста: Английский
ISSN: 1420-3049
Demina P.
Arkharova N.
Asharchuk I.
Khaydukov K.
Karimov D.
Rocheva V.
Nechaev A.
Grigoriev Y.
Generalova A.
Khaydukov E. V. Evgenij Valeryevich 1984-
Демина П.
Архарова Н.
Ашарчук И.
Хайдуков К.
Каримов Д.
Рочева В.
Нечаев А.
Григориев Y.
Генералова А.
Хайдуков Е. В. Евгений Валерьевич 1984-
Polymerization assisted by upconversion nanoparticles under NIR light
Текст визуальный непосредственный
Molecules
Springer-Verlag GmbH
Vol.24, Issue13 Num.2476
2019
Статья
Nanocomposite materials NIR light Photopolymerization Surface modification Upconversion nanoparticles
epoxide glycidyl methacrylate macrogol methacrylic acid nanoparticle poly(ethylene glycol)diacrylate polymer chemistry hydrodynamics infrared radiation particle size polymerization thermodynamics ultrastructure Epoxy Compounds Hydrodynamics Infrared Rays Methacrylates Nanoparticles Particle Size Polyethylene Glycols Polymerization Polymers Thermodynamics
Photopolymerization of nanocomposite materials using near infrared light is one of the unique technologies based on the luminescent properties of lanthanide-doped upconversion nanoparticles (UCNPs). We explored the UCNP-triggered radical polymerization both in oligomer bulk and on the nanoparticle surface in aqueous dispersion. Core/shell UCNPs NaYF4:Yb3+ and Tm3+/NaYF4 with emitting lines in the ultraviolet and blue regions were used to activate a photoinitiator. The study of the bulk photopolymerization in an initially homogeneous reaction mixture showed the UCNP redistribution due to gradient density occurring in the volume, which led to formation of UCNP superlattices and spheres “frozen” in a polymer matrix. We also developed a strategy of “grafting from” the surface, providing polymer shell growth directly on the nanoparticles. The photosensitization of the endogenous water-soluble photoinitiator riboflavin by the resonance energy transfer from UCNPs was demonstrated in the cours