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Current Trends in Polymer Science   Volumes    Volume 21 
The oligomerization regularities of individual unsaturated components of pyrolysis liquid products
Alex A. Lyapkov, Anna V. Bondaletova, Vladimir G. Bondaletov, Elena I. Melnik, Lyudmila S. Soroka, Ann A. Troyan, Mekhman S. Yusubov
Pages: 61 - 72
Number of pages: 12
Current Trends in Polymer Science
Volume 21 

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The relationship between the reactivity of the monomers and the electron density of the double β-atom in the carbon-carbon double bond was determined. The density of the β-atom can be estimated from the chemical shift of the respective protons shown in 1Н-NMR spectra. Correlation equations that allow us to determine the reactivity values of a range of vinyl monomers bearing electron-donating substituents under the influence of catalyst systems Et2AlCl–TiCl4 and TiCl4 are presented. The established relationships between reaction rate constants, enthalpy, polymerization activation energy and electron density of the β-atom in the carbon-carbon double bond can be used to select the optimal duration and temperature for the synthesis of polymeric petroleum resins.
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