1. Polymer crosslinking by a bimolecular peroxide decomposition
- Author
-
R. Rado and I. Chodák
- Subjects
chemistry.chemical_classification ,Heptane ,Radical ,Kinetics ,technology, industry, and agriculture ,General Engineering ,macromolecular substances ,Polymer ,Polyethylene ,Photochemistry ,Peroxide ,Redox ,Catalysis ,chemistry.chemical_compound ,chemistry - Abstract
The present paper examines the possibility of the utilization of the bimolecular cumyl hydroperoxide redox decomposition, catalyzed by Co11 naphthenate for the polymer crosslinking. The study of the mechanism and the kinetics of this reaction was performed both in a model medium heptane and polymer or polymer solution. In the case of redox initiation, the value of the crosslinking efficiency was found to be about 0.4, and its decrease can be attributed mainly to the formation of ions and, partly, to recombination of peroxy radicals producing dialkyl peroxide. On the basis of data obtained concerning the efficiency and rate of the process, conclusions are made on its applicability, especially for the crosslinking below the melting point of a crystalline polymer, as is the case of the crosslinking of polyethylene films.
- Published
- 2007