Zobrazeno 1 - 10
of 155
pro vyhledávání: '"S. V. Levanova"'
Publikováno v:
Тонкие химические технологии, Vol 17, Iss 6, Pp 483-491 (2023)
Objectives. To find an effective way for obtaining triamyl citrate, an environmentally friendly, biodegradable citric acid ester used as a plasticizer for PVC-based polymer compositions.Methods. The possibilities of heterogeneous catalysis were analy
Externí odkaz:
https://doaj.org/article/d5d1f57ceaab41c4a3321cb6937ceaa4
Publikováno v:
Тонкие химические технологии, Vol 17, Iss 1, Pp 7-17 (2022)
Objectives. Due to their structures, pentaerythritol esters have a number of appealing properties such as high viscosity index when used as oils and excellent compatibility with polyvinyl chloride when used as plasticizers. For the production of pent
Externí odkaz:
https://doaj.org/article/73b3b1faed22434fa4d822233f78e59c
Publikováno v:
Тонкие химические технологии, Vol 14, Iss 5, Pp 21-30 (2019)
Objectives. The intensification of modern large-tonnage Russian technologies requires a deep investigation into the theoretical foundations of these processes and searching for ways that would significantly reduce the time and cost of their developme
Externí odkaz:
https://doaj.org/article/e39ce6af38834f8b8f745d6598772812
Publikováno v:
Тонкие химические технологии, Vol 14, Iss 1, Pp 66-74 (2019)
Polyhydric alcohols - neopolyols and their derivatives due to the nature of the structure have a row of unique properties - high thermal stability, moisture resistance, chemical resistance and are widely used in the production of synthetic oils, resi
Externí odkaz:
https://doaj.org/article/eaaded3a23864d809a3f276ade35dca0
Publikováno v:
Тонкие химические технологии, Vol 12, Iss 6, Pp 77-82 (2017)
Kinetics of catalytic esterification of glycerol with butanoic acid on model systems was studied. Reaction orders for the reactants (butanoic acid and glycerol) were determined. They are close to 1.It was shown that the reaction order with respect to
Externí odkaz:
https://doaj.org/article/5da9db466cc74309af1ac16c62562d20
Publikováno v:
Тонкие химические технологии, Vol 12, Iss 3, Pp 28-32 (2017)
There is an ever increasing interest in the production and use of bio-based chemical substances for the preparation of polymeric materials designed to obtain children's toys, medical equipment and materials that are in contact with food. Trifunctiona
Externí odkaz:
https://doaj.org/article/32fb496171f6472691dec46d0542ef43
Publikováno v:
Тонкие химические технологии, Vol 10, Iss 6, Pp 79-82 (2015)
During the production of PVC articles a composition was prepared with different additives that give the required exploitation properties. Among these additives there are viscosity regulators which are capable of changing PVC pastes viscosity over a b
Externí odkaz:
https://doaj.org/article/ba4df7fac3a141ea9f197ce4adf980b1
Publikováno v:
Petroleum Chemistry. 61:1027-1032
Various procedures for thermal esterification of individual monobasic С4–С7 carboxylic acids with pentaerythritol in an excess of the corresponding acid in the presence of a solvent or without it in combination with azeotropic distillation of wat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58a02e1edf49228766cf53a0b8654650
https://doi.org/10.1134/s0965544121090048
https://doi.org/10.1134/s0965544121090048
Publikováno v:
Тонкие химические технологии, Vol 8, Iss 6, Pp 78-81 (2013)
The organic waste generated in the caprolactam production contains a complex mixture of mono- and dicarboxylic acids. It is shown that using two-step oxidation by aqueous hydrogen peroxide allows to isolate adipic acid of high quality. In case if the
Externí odkaz:
https://doaj.org/article/51f2fa6cb5e54c949eb946561b654e8b
Publikováno v:
Russian Journal of Physical Chemistry A. 94:659-661
The logarithmic retention indices and the enthalpies of sorption at the average temperature of an experiment and 298.2 K are determined via gas–liquid chromatography using DB-1 stationary phase for esters of neopentyl glycol and С2–С6 monobasic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d8b97e38671156b423530a325389292
https://doi.org/10.1134/s0036024420030188
https://doi.org/10.1134/s0036024420030188