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Advisor(s)
Abstract(s)
Since the discovery of controlled radical polymerization (CRP) in the early nineties (Georges et al.,
1993), an ever increasing activity has been focused on the production of polymers with narrow molecular
weight distributions and well-de ned architectures (such as block copolymers, stars or brushes). This
work describes an experimental research on the nitroxide-mediated radical polymerization (NMRP) of
styrene (S) and divinylbenzenes (DVB) in xylene (X) solution at 130 °C, using the stable radical TEMPO
(2,2,6,6-tetramethylpiperidinyl-1-oxy) as mediator and AIBN (azobisisobutyronitrile) as initiator. Measurements
of absolute molecular weights and z-average radius of gyration of the produced copolymers
have been performed for different polymerization times using a SEC system with coupled refractive
index (RI) and multi-angle laser light scattering (MALLS) detectors.
Description
Keywords
Crosslinking Nitroxide-mediated Kinetic Modelling Radius of gyration
Citation
Gonçalves, Miguel; Dias, Rolando; Costa, Mário (2008). Experimental study of the TEMPO mediated copolymerization of styrene with divinylbenzene. In 10th International Chemical and Biological Engineering Conference - CHEMPOR. Braga. p. 872-877. ISBN 978-972-97810-3-2
Publisher
Universidade do Minho