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Polymer Congress 2018
Polymer Sciences
ISSN: 2471-9935
Page 77
June 04-05, 2018
London, UK
4
th
Edition of International Conference on
Polymer Science and
Technology
I
n this work, new spyrocyiclic N-alkoxyamines 1 leading to
initiators for controlled polymerization were synthesized.
These compounds constituted by an indene system connected
through a carbon atom to a pyrrolidine nucleus, and containing
an alpha H to the N atom, are able to generate the corresponding
nitroxides 2. The cleavage temperatures were determined
by ESR spectroscopy. In order to evaluate the effectiveness
of the initiators, styrene 3 polymerizations were carried out
In general, it was observed that at higher temperatures the
conversion percentage increased, and both the dispersity
index and polymer molecular weight decreased, suggesting
that the reaction mechanism proceeds similar to that expected
for a nitroxide-mediated polymerization (NMP).
hector.zuluaga@correounivalle.edu..co
Spirocyclic N-alkoxyamines with-hydrogen as initiators in
nitroxide mediated polymerization (NMP) of styrene
Juan S Pardo Tamayo, Alejandro Guerrero Caicedo
and
Hector F Zuluaga and Luz
M Jaramillo Gómez
University of Valle, Colombia
Polym Sci 2018, Volume 4
DOI: 10.4172/2471-9935-C2-012