№3 (2017) 8

https://doi.org/10.15407/polymerj.39.03.195

Synthesis and investigation of the chemical structure of blockcopolimers of castor oil based on oligomeric azoinitiators

N.A. Busko, V.K. Grishchenko, A.V. Barantsova, Yu.O. Silchenko, Ya.V. Kochetova, N.V. Gudzenko

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivs’ke shose, Kiyv, 02160, Ukraine, oligomer8@bigmir.net

Polym. J., 2017, 39, № 3: 195-201.

Section: Synthesis polymers.

Language: Russian.

Abstract:

Methods for the synthesis of oligomeric azoinitiators of castor oil with a different number of initiating centers have been developed. Their chemical structures and the kinetic depends of formation by IR-spectroscopy were studied. Three series of blockcopolymers were synthesized on the basis of oligomeric azoinitiators of castor oil and styrene at different molar ratios by the method of radical thermoinitiated polymerization. The kinetic studies of the formation of blockcopolymers were conducted by the method of differential calorimetry on the DAK1-1A calorimeter. The process of formation of blockcopolymers in two ways was studied: one-stage and two-stage. It is shown that the most optimal one is the one-step method for synthesizing blockcopolymers using an oligomeric initiator of castor oil with two initiated centers at a molar ratio OAI / styrene = 1/140.

Key words: blockcopolymers, oligomeric azoinitiators, castor oil, radical polymerization.

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