Atrp – Polarizing / Depolarizing Functional Mechanism

Authors: Stefko B. Iliev

The Atom Transfer Radical Polymerization (ATRP) in the conventional – copper mediated variant is the main representative case of the controlled radical polymerizations (CRP). That’s why, the discussions of the new notions about the complex formation, polymer chains initiation, growth and termination are oriented to comparison with the reactions included in the conventional ATRP mechanism. The basic postulate of this mechanism is the opinion for reversible haloid atom transfer at every chain growth elementary act. This mechanism however, can not to explain the effect of the ATRP acceleration observed at the vinyl monomers polymerization under of magnetic field influence. That’s why, it is proposed a new functional mechanism named: ATRP – Polarizing / Depolarizing Functional Mechanism. The proposed theory submit that the monovalent copper complex chemical activity is a consequence from the complex brief-living molecular structure physical asymmetry. Because of this, the resulting effect is double electrostatic and electrochemical polarization of the complex molecules and following biphase depolarization at the chain grouth and the termination steps. This mechanism throw additional light not only on the ATRP reversible equilibrium and the haloid atom transfer effects, but also on the motive forces essence at all of the cases by transition metals mediated radical polymerizations with identical complex formation.

Comments: 24 Pages.

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[v1] 2017-02-13 00:48:16

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