Abstract
The interchain exchange reaction in a blend composed of two contacting layers of incompatible A and B homopolymers was simulated by means of the dynamic off-lattice Monte Carlo method. The evolution of local molecular-mass and block mass distributions, depending on the effective temperature and the reaction rate, was studied for the first time. It was shown that the components interpenetrate as the copolymer forms in the interphase layer and the average block length decreases below a certain, temperature-dependent value. The state of dynamic equilibrium, whose characteristics are determined mainly by temperature, is established in the system. The time of establishment of equilibrium and the intensity of compatibilization at the early steps of the process are controlled by the rate of the reaction. The results of the study allow the contribution of the reaction to the interchange processes to be evaluated.
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Original Russian Text © A.V. Chertovich, D.V. Guseva, Ya.V. Kudryavtsev, A.D. Litmanovich, 2008, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2008, Vol. 50, No. 4, pp. 686–698.
This work was supported by the Russian Foundation for Basic Research, project no. 07-03-00988; the President of the Russian Federation Programs for Support of Young Scientists (grant MD-4684.2006.3) and Leading Scientific Schools (grant NSh-4676.2006.3); NWO, grant no. 047.019.003; and the National Science Promotion Foundation.
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Chertovich, A.V., Guseva, D.V., Kudryavtsev, Y.V. et al. Monte Carlo simulation of the interchain exchange reaction in a blend of incompatible polymers. Polym. Sci. Ser. A 50, 451–461 (2008). https://doi.org/10.1134/S0965545X08040147
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DOI: https://doi.org/10.1134/S0965545X08040147