Pulse radiolysis study on polymerization kinetics in organic solvent: 2-ethylhexyl acrylate

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Pulse radiolysis with kinetic spectroscopic detection was applied to study the first steps of the polymerization of 2-ethylhexyl acrylate (EHA) in cyclohexane solution. The absorption spectra and the kinetic characteristics of the intermediates were investigated in solutions of different monomer concentrations. Immediately after the pulse the maximum of the spectrum was at approx. 250 nm that is characteristic of the cyclohexyl radical. This maximum was gradually shifted in time to above 300 nm indicating the appearance of carboxyalkyl radicals. For higher concentration solutions a further shift was observed that can be attributed to the absorbance of the oligomer radicals formed. From the kinetic curves the rate coefficients of initiation and termination were calculated and the rate coefficient of propagation was estimated.

Original languageEnglish
Pages (from-to)346-349
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-4
Publication statusPublished - May 2 1999
EventProceedings of the 1998 3rd International Symposium on Lonizing Radiation and Polymers (IRaP-98) - Weinbohla, Ger
Duration: Sep 19 1998Sep 24 1998

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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