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Aminova, G. A.; Manuiko, G. V.; Литвиненко, Г. И.; D’yakonov, G. S.; Золотарев, В Л; Filipova, A. G.; Игнашина, Т. В.; Davydova, V. V.; Антонова, О. В.

doi:10.1023/a:1020732817333

Cited by 23 publications

(3 citation statements)

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“…[20][21][22] Simple cobalt salts such as CoCl 2 , activated with organoaluminium compounds, are also able to polymerise 1,3-butadiene to give cis-specific living polymerisation. [23][24][25][26][27] Interestingly, the presence of PPh 3 or CS 2 during the polymerisation reaction results in the formation of 1,2-polybutadiene. 16-18,28- 33 Numerous nickel(II) allyl complexes have been used as polymerization initiators, 34-36 whereby the most active systems are the "ligand-free" nickel complexes, which give polybutadiene with 93% cis-1,4 enchainment.…”

Section: Introductionmentioning

confidence: 99%

The effect of the central donor in bis(benzimidazole)-based cobalt catalysts for the selective cis-1,4-polymerisation of butadiene

et al. 2010

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A series of bis(benzimidazole)-based cobalt(II) dichloride complexes containing a range of different central donors has been synthesized and characterized. The nature of the central donor affects the binding of the ligand to the cobalt centre and determines the coordination geometry of the metal complexes. All complexes have been shown to catalyse the polymerization of butadiene, in combination with MAO as the co-catalyst, to give cis-1,4-polybutadiene with high selectivity. The nature of the central donor has a marked influence on the polymerization activity of the catalysts, but does not affect the polymer microstructure. The addition of PPh(3) generally increases the polymerization activity of these cobalt catalysts and results in predominantly (60-70%) 1,2-vinyl-polybutadiene.

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Section: Introductionmentioning

confidence: 99%

The effect of the central donor in bis(benzimidazole)-based cobalt catalysts for the selective cis-1,4-polymerisation of butadiene

et al. 2010

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“…To date, a program for the efficient use of energy has been developed, which is quite extensive and covers many areas. At the same time, it is necessary to develop more specific directions, define stages and evaluate the effectiveness of investment [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Efficient use of secondary energy resources at an organic synthesis enterprise by the method of energy-technological combination

Bronskaya

Balzamov

Balzamova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Organic synthesis enterprises are characterized by multi-stage technological processes and large volumes of production of various products, the production of which is associated with a huge consumption of energy resources. First of all, the technological processes of such enterprises are associated with the conversion and consumption of water vapor and electric energy, which are transformed from external sources. Currently, there is a tendency in the energy industry to replace outdated capacities with new ones by the installation of efficient combined cycle power units, the construction of which is costly both financially and resource-wise, requiring the involvement of highly qualified personnel. All this leads to an increase in energy tariffs, which affects the financial performance of large consumers, including organic synthesis enterprises, whose technological processes are associated with the formation of secondary energy resources in the form of water steam, flue gases, combustion gases, hot water. This article offers a variant of the useful use of water steam for technological processes and the generation of electrical energy for the own needs of the enterprise.

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“…Aminova et al developed a mathematical model to describe the course of 1,3‐butadiene solution polymerizations using a cobalt‐containing catalyst. The proposed model was able to simulate number and weight average molecular weights, sedimentation‐average degrees of polymerization and branching factors.…”

Section: Introductionmentioning

confidence: 99%

Modeling of 1,3‐Butadiene Solution Polymerizations Catalyzed by Neodymium Versatate

Vasconcelos

Brandão

Dutra

et al. 2019

Polymer Engineering & Sci

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The control of polymerization conditions and final properties of polybutadiene produced through solution polymerizations constitute an important industrial challenge, which can be tackled with help of mathematical models. For this reason, the present work focus on the development of a phenomenological mathematical model, and estimation of the respective model parameters, in order to describe the kinetics of 1,3‐butadiene solution polymerizations catalyzed by neodymium versatate. The proposed model can be used to predict some important final properties of polybutadiene resins, including the cis‐content and average molecular weights, and the evolution of operation conditions that are used at plant site to monitor the course of the reaction, including the reaction temperature and pressure. Given the low required computation times, the proposed model can be used for purposes of monitoring and control in actual industrial sites. POLYM. ENG. SCI., 59:2290–2300, 2019. © 2019 Society of Plastics Engineers

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Cited by 23 publications

References 0 publications

The effect of the central donor in bis(benzimidazole)-based cobalt catalysts for the selective cis-1,4-polymerisation of butadiene

The effect of the central donor in bis(benzimidazole)-based cobalt catalysts for the selective cis-1,4-polymerisation of butadiene

Efficient use of secondary energy resources at an organic synthesis enterprise by the method of energy-technological combination

Modeling of 1,3‐Butadiene Solution Polymerizations Catalyzed by Neodymium Versatate

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