Environmentally friendly synthesis route of terpolymers derived from alkyl acrylates and their performance as additives
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ORIGINAL PAPER
Environmentally friendly synthesis route of terpolymers derived from alkyl acrylates and their performance as additives for liquid hydrocarbon products Farrukh Shokirjonovich Khakimov 1
&
Nuriddin Shamshidinovich Mukhtorov 2 & Oytura Siddikovna Maksumova 3
Received: 25 June 2020 / Accepted: 20 August 2020 # The Polymer Society, Taipei 2020
Abstract In this work acrylic terpolymers with different alkyl radicals were synthesized to find out the alkyl radicals with the lowest average carbon number in poly (alkyl acrylate) (PAA) samples to reach the highest viscosity index with lower concentration of the polymer. Firstly, esters of acrylic monomers are synthesized with a heteroazeotrope forming solvent not miscible with methanol, alleviating the separation process. It was followed the syntheses of terpolymers to be evaluated the solubility of them in petroleum products. After being conducted the solubility tests of these polymers in several lube oil base stocks, the suitable PAA with different molecular weights were chosen and sent them for ultrasonic testing to check their shear stability indices or the stability to mechanical destruction. Found the polymer with boundary solubility in lube oil base stocks in order to attain the highest viscosity index and mechanical destruction stability. Found low temperature, electrical conductivity and wear resistance properties of GTL (Gas to Liquid) diesel dosed with these additives. Laboratory equipment’s illustrations as well as an environmentally friendly synthesis route of the copolymers were given. Keywords Transesterification with heteroazeotrope forming agent . Viscosity index improver . Sonic shear stability index . Synergetic effect
Introduction In recent years, lubricant demand has become more than 35 million tons per year worldwide. By 2020, almost one-half of global lubricant demand came from Asia Pacific. In contrast, Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10965-020-02268-1) contains supplementary material, which is available to authorized users. * Farrukh Shokirjonovich Khakimov [email protected]; http://tkti.uz/en Nuriddin Shamshidinovich Mukhtorov http://www.ung.uz/ Oytura Siddikovna Maksumova http://tkti.uz/en 1
Tashkent Chemical-Technological Institute, 32, Navoi street, Tashkent City 100011, Uzbekistan
2
“Uzbekneftegaz” JSC, 16, Istiqbol street, Mirabad district, Tashkent City 100047, Uzbekistan
3
Tashkent Chemical-Technological Institute, 32, Navoi street, Tashkent City 100011, Uzbekistan
Europe, including Russia, consumed only about one-sixth of total production (https://www.lubricants.total.com/newspress-releases/oil-demand-and-supply-forecasts). In order to attain better fuel economy and low-temperature performance the usage of lighter-viscosity multigrade oils has made base oil properties main factors in lubricant production [1]. The American Petroleum Institute (API) categorized base oils into five main groups (http://www.api.org/~/media/files/ certification/engine-oil
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