Investigation of the mechanism of crossover reaction of p-dicumyl chloride/BCl3/isobutylene system by glass fiber optic photometry

S. Kéki, L. Bogács, Cs Bogács, M. Zsuga

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4 Citations (Scopus)


A thorough kinetic investigation was done by measuring the optical density of reaction mixtures of the pDCC/BCl3 initiating system in the presence and in the absence of monomer and added salt at 500 nm and at -80°C. The absolute rate constants of elementary steps of the ion generation and cationation were evaluated by computer using a fitting method for determination of the parameters occurring in the kinetic model. The key activated species of the mechanism are identified to be colorless donor-acceptor complexes The color of reaction mixtures is caused by ionized species. On the basis of the calculations and other evidences, a well-established mechanism is proposed. Both -1C-Cl and -1C-OH endgroups were found by MS/EI. GPC analysis of the reaction products indicates that the major product is dimer under the reaction conditions applied.

Original languageEnglish
Pages (from-to)255-264
Number of pages10
JournalMacromolecular Symposia
Publication statusPublished - Apr 1996

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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