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Type: Artigo de periódico
Title: Nitroxide-mediated Radical Polymerization Of Styrene Using Mono- And Di-functional Initiators
Author: Dias R.S.
Goncalves M.C.
Lona L.M.F.
Vivaldo-Lima E.
McManus N.T.
Penlidis A.
Abstract: With the purpose of enhancing the reaction rate of the nitroxide-mediated radical polymerization (NMRP) of styrene in the presence of TEMPO (2, 2, 6, 6-tetramethyl-1-piperidinyloxy), while maintaining the livingness of the system, the effect of the use of a di-functional initiator was investigated. Dibenzoyl peroxide (BPO) and tert-butylperoxy-2-ethylhexyl carbonate (TBEC) were applied as mono-functional initiators and 1, 1-di(tert-amylperoxy)-cyclohexane (Luperox L531) as di-functional initiator. It was shown that in the case of the di-functional initiator, the polymerization rate and the number average molecular weight could be simultaneously increased relative to the performance observed with the mono-functional initiators, under the reaction conditions. © 2007 Elsevier Ltd. All rights reserved.
Citation: Chemical Engineering Science. , v. 62, n. 18-20, p. 5240 - 5244, 2007.
Rights: fechado
Identifier DOI: 10.1016/j.ces.2006.12.050
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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