P 99 Pyrolysis of polystyrene in coal tar and ethylene tar pitches [Электронный ресурс] / E. Andreikov, I. S. Amosova, Yu. A. Dikovinkina, O. Krasnikova, M. G. Pervova> // Russian Journal of Applied Chemistry. - 2012. - Vol.85, №1. - P89-97 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PYROLYSIS -- POLYSTYRENE -- ETHYLENE Аннотация: Pyrolysis of polystyrene in the medium of coal tar pitch and of pitch prepared from ethylene production tar was performed in the temperature range 360-420°C at atmospheric pressure |
S 98 Synthesis of poly[N-(2,3-dihydroxypropyl)aminostyrene], a new sorbent for boron(III) ions / D. V. Nesterov, L. S. Molochnikov, M. I. Kodess, E. G. Matochkina, O. V. Koryakova, Yu. G. Yatluk, A. V. Pestov> // Russian Journal of Applied Chemistry. - 2013. - Vol.86, №5. - С. 777-781. - Библиогр.: с. 781 (33 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AMINOSTYRENE -- NITRATION -- GLYCIDOL Аннотация: A procedure was developed for preparation of poly[N-(2,3-dihydroxypropyl)aminostyrene] via successive stages of nitration, reduction, and glycidol treatment of polystyrene, which gives the polymer with a maximal degree of functionalization. The composition and structure of the intermediates and end products of the polymer-analogous reactions were characterized by elemental analysis, IR spectroscopy, and solid-state 13C NMR spectroscopy. The sorption characteristics of poly[N-(2,3-dihydroxypropyl)aminostyrene] toward boroncontaining ions were assessed \\\\expert2\\NBO\\Russian Journal of Applied Chemistry\\2013, v. 86, N 5, p.777.pdf |
T 45 Thiocarbamoylation of chlorosulfonated polystyrene for preparing sorbents for noble metal ions / D. V. Nesterov, A. V. Mekhaev, A. V. Pestov, V. A. Bakulev, S. Y. Bratskaya> // Russian Journal of Applied Chemistry. - 2018. - Vol. 91, № 2. - P292-296 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
Development of the method of polystyrene chloromethylation using the synthesis in gel approach / D. V. Nesterov, A. P. Rodionova, A. V. Mekhaev [et al.]> // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1149-1153 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POLYSTYRENE -- CHLOROMETHYLATION -- SYNTHESIS IN GEL Аннотация: A new method for the preparation of poly(chloromethylstyrene) by synthesis in a gel via treating of linear polystyrene with cyclic formals in thionyl chloride has been developed. The method allows to obtain a polymer with a high degree of functionalization. The degree of chloromethylation depends on the molar ratio of the reagents and the catalyst used. The reactivity of the formals increases in the series 1,3-dioxolane < trioxane < paraform. The composition and structure of polymer products were characterized by elemental analysis, FTIR spectroscopy, and thermogravimetry. It is established that carrying out of chloromethylation in gel allows, in comparison with the known methods, to achieve a greater degree of functionalization faster and with lower consumption of reagents and solvents. |
Polystyrene stabilized iridium nanoparticles catalyzed chemo- and regio-selective semi-hydrogenation of nitroarenes to N-arylhydroxylamines / D. Bhattacherjee, G. V. Zyryanov, Shaifali [et al.]> // Molecular catalysis. - 2021. - Vol. 514. - P111836 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SUPPORTED IRIDIUM NANOPARTICLES -- N-ARYLHYDROXYLAMINE -- SEMI-HYDROGENATION Аннотация: Polystyrene stabilized Iridium (Ir@PS) nanoparticles (NPs) as a heterogeneous catalyst have been developed and characterized by IR, UV–Vis, SEM, TEM, EDX and XRD studies. The prepared Ir@PS catalyst showed excellent reactivity for chemo- and regio-selective controlled-hydrogenation of functionalized nitroarenes to corresponding N-arylhydroxylamine using hydrazine hydrate as reducing source and environmentally benign polyethylene glycol (PEG-400) as green solvent. The present methodology was applied for vast substrate scope and found to be compatible with wide range of reducible functional groups. The reaction performed at 85 °C or ambient temperature and completed within 5–80 minutes. The catalyst can easily be filtered out from reaction mixture and reusable. |