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Features of Macromolecule Formation by RAFT-Polymerization of Styrene in the Presence of Trithiocarbonates

Ulitin N. V., Oparkin A. V., Deberdeev R. Y., Shirokih E. B., Kubica S., Klodzinska E., Zaikov G. E.

Przetwórstwo Tworzyw

2013

[R.] 19, nr 6 (156)

666--678

The kinetic modelling of styrene with controlled radical polymerization, initiated by 2,2’-asobis(isobutirnitrile) and proceeded by a reversible chain transfer mechanism was carried out and accompanied by «addition-fragmentation» in the presence of dibenzyltritiocarbonate. An inverse problem of determining of the unknown temperature dependences of single elementary reaction rate constants of the kinetic scheme was solved. The adequacy of the model was revealed by comparing the theoretical and experimental values of polystyrene’s molecular-mass properties. The influence of the process controlling factors on polystyrene’s molecular-mass properties was studied.