Synthesis and structural characterization of a liquid polyisoprene bearing amidoxime end groups

Synthesis and structural characterization of a liquid polyisoprene bearing amidoxime end groups

Azo-bis(isobutyroamidoxime) was synthesized and used as functionalized initiator to prepare a liquid isoprene bearing amidoxime end groups via radical polymerization. The polymer was characterized by FT-IR, Gel Permeation Chromatography and NMR. In particular, the structure of the polymer was invest...

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Bibliographic Details
Published in:Journal of polymer research Vol. 18; no. 6; pp. 2265 - 2273
Main Authors: Burel, Fabrice, Oulyadi, Hassan, Bunel, Claude, Grishchenko, Vladimir, Busko, Natalya, Barantsova, Antonina, Boiko, Vitaly
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01-11-2011
Springer Nature B.V
Springer Verlag
Subjects:
Analytical chemistry
Bearing
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry
Chemistry and Materials Science
Gel permeation chromatography
Industrial Chemistry/Chemical Engineering
Initiators
Isoprene
Liquids
Nuclear magnetic resonance
Original Paper
Polymer Sciences
Polymers
Radicals
Two dimensional
Liquid rubber
NMR
Structure
Amidoxime
Radical polymerization
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Summary:Azo-bis(isobutyroamidoxime) was synthesized and used as functionalized initiator to prepare a liquid isoprene bearing amidoxime end groups via radical polymerization. The polymer was characterized by FT-IR, Gel Permeation Chromatography and NMR. In particular, the structure of the polymer was investigated using 1D and 2D NMR techniques. The distribution of the different isoprene units (1,4-trans, 1,4-cis, 1,2 and 3,4), as well as the structure of the amidoxime end-groups was determined. It was found that the structure of the end groups was governed by the steric hindrance of the initiator. Only 1,4 and 4,1 functionalized end units were evidenced, with a majority of 4,1 end units.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-011-9640-4