Preparation and optical properties of composite materials based on polybenzimidazole and silver nanoparticles

• Published in: Russian journal of applied chemistry 2017, Vol.90 (1), p.84-90
• Main Authors: Akovantseva, A. A., Aksenova, N. A., Zarkhina, T. S., Krotova, L. I., Minaev, N. V., Rybaltovskii, A. O., Kholkhoev, B. Ch, Farion, I. A., Yusupov, V. I., Burdukovskii, V. F., Bagratashvili, V. N., Timashev, P. S.
• Format: Article
• Language: English
• Subjects: Agglomerates; Carbon dioxide; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Composite materials; Formic acid; Gratings (spectra); Industrial Chemistry/Chemical Engineering; Nanoparticles; Optical properties; Polymer matrix composites; Precursors; Silver; Various Technological Processes
• ISSN: 1070-4272; 1608-3296
• DOI: 10.1134/S107042721701013X

Rigid-chain heat resistant polymers (with poly-2,2'- p -oxydiphenylene-5,5′-bisbenzimidazole as example) were impregnated for the first time with a silver-containing precursor in formic acid and in supercritical carbon dioxide. A procedure allowing the precursor reduction to silver nanoparticles both throughout the volume by thermal annealing of the films in the temperature interval 100–150°С and in the targeted mode using lasers operating at 405 and 532 nm was developed. It opens prospects for developing a process for production of heatresistant optical gratings and light guides. The reduces nanoparticles and their agglomerates have the size in the interval 50–200 nm and give a plasmon band in the range 450–460 nm.