Author:
E. Takács Institute of Isotopes of the Hungarian Academy of Sciences P.O. Box 77 H-1525 Budapest Hungary

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Abstract  

The kinetics of radiation initiated polymerization of HDDA and HDDMA were investigated in cyclohexane solutions by pulse radiolysis with transient spectroscopic detection. The maxima of the transient absorption spectra observed below 300 nm were shifted to longer wavelength with increasing the monomer concentration indicating a change in the structure of the intermediates. In HDDA solution of 10 mmol·dm−3 concentration a second peak appears at ∼330 nm as a consequence of the onset of oligomer radical formation. In HDDMA solution oligomer formation can be detected at higher concentration because of the lower reactivity of this monomer. The rate constants of termination (2kt) were determined at different monomer concentrations.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)