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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received December 19, 2003
Accepted April 23, 2004
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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The Effect of CO2 in Free-radical Polymerization of 2,2,2-Trifluoroethyl Methacrylate

School of Chemical Engineering & Institute of Chemical Processes, Seoul National University, Seoul 151-744, Korea
Korean Journal of Chemical Engineering, July 2004, 21(4), 910-914(5), 10.1007/BF02705539
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Abstract

Carbon dioxide is an effective diluent for increasing the free volume of polymer. It has useful advantages with reductions of viscosity, surface tension and with an increase of diffusion into polymer. These properties are available in polymer processing and particle designing. We carried out free-radical polymerization of 2,2,2-trifluoroethyl methacrylate (TFEMA) with AIBN as the initiator in carbon dioxide. This experiment was performed at fixed temperature (343 K), stirring speed and weight of monomer+initiator. Only weight ratios of carbon dioxide were changed. Molecular weight and Tg showed a minimum at 14.1 MPa and increased in the higher final pressure.

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