The kinetics and mechanism of the first steps of radiation initiated polymerization was studied in cyclohexane solution of butyl acrylate applying pulse radiolysis with optical detection. By increasing the monomer concentration, the shape and wavelength of the maximum of the spectrum was changed indicating the start of the oligomerization reaction. From the kinetic curves average rate coefficients of termination for the oligomer radicals (2kt) were determined. They were found to decrease in time (that is with increasing chain-length).
- High-energy radiation
- Polymerization kinetics
- Pulse radiolysis
- Rate coefficient of termination
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