Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 46: Issue 6
Investigation of isothermal bulk polymerization ofo-alkyaryl methacrylates by DSC
Authors:
D. M. Petrović-Djakov Faculty of Technology and Metallurgy University of Belgrade Karnegijeva 4 POB 494 YU-11000 Belgrade Yugoslavia

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J. M. Filipović Faculty of Technology and Metallurgy University of Belgrade Karnegijeva 4 POB 494 YU-11000 Belgrade Yugoslavia

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Lj. P. Vrhovac Faculty of Technology and Metallurgy University of Belgrade Karnegijeva 4 POB 494 YU-11000 Belgrade Yugoslavia

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J. S. Veličković Faculty of Technology and Metallurgy University of Belgrade Karnegijeva 4 POB 494 YU-11000 Belgrade Yugoslavia

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Pages:
1681–1686
Online Publication Date:
02 Aug 2005
Publication Date:
01 Jun 1996
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01980773
Restricted access

The kinetics of the AIBN-initiated free radical bulk polymerization of fiveo-alkylphenyl methacrylates was studied by means of DSC in the temperature range 353–373 K, and the enthalpy of polymerization, the overall reaction rate constant and the activation energy were determined. The results were compared with those published recently on correspondingp-alkylaryl methacrylates. All measured reaction rate constants were found to increase with increasing temperature and to decrease with increasingo-alkyl substituent mass and size. It was shown thato-substituents influence the rates of polymerization to a greater extent thanp-substituents. At about 373 K, all differences in rate, most probably resulting from steric hindrance caused by the alkyl groups, disappear in both series, a phenomenon earlier observed for dimethyl phenyl methacrylates.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
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 1388-6150 (Print)
ISSN 1588-2926 (Online)

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