Influence of polymerization conditions on the molecular weight and polydispersity of polyepichlorohydrin

dc.creatorGuanaes, D
dc.creatorBittencourt, E
dc.creatorEberlin, MN
dc.creatorSabino, AA
dc.date2007
dc.dateMAY
dc.date2014-11-15T06:25:34Z
dc.date2015-11-26T16:09:43Z
dc.date2014-11-15T06:25:34Z
dc.date2015-11-26T16:09:43Z
dc.date.accessioned2018-03-28T22:58:19Z
dc.date.available2018-03-28T22:58:19Z
dc.identifierEuropean Polymer Journal. Pergamon-elsevier Science Ltd, v. 43, n. 5, n. 2141, n. 2148, 2007.
dc.identifier0014-3057
dc.identifierWOS:000247040600057
dc.identifier10.1016/j.europolymj.2007.02.016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80246
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/80246
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80246
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1266688
dc.descriptionThe influence of the relevant reaction conditions on the molecular weight and polydispersity during the cationic ring-opening polymerization of epichlorohydrin has been studied using an experimental design. The polymerization was conducted in the presence of an alcohol (diol and triol), a Lewis acid at two temperatures (5 degrees C and 25 degrees C), and with two monomer addition rates. FT-IR spectra were used for the chemical characterization of the polymer, and MALDI-TOF mass spectrometry was used to determine the oligomeric composition and the masses of the initiator or transfer agent. The FT-IR showed the characteristic peaks of polyepichlorohydrin, and the mass spectra indicate that the alcohol was incorporated in the polymer structure. The MW and polydispersity were determined using gel permeation chromatography. We observed that the two most significant parameters that affected MW were the monomer addition rate and the reaction temperature, whereas polydispersity was most strongly affected by the monomer addition rate. (C) 2007 Elsevier Ltd. All rights reserved.
dc.description43
dc.description5
dc.description2141
dc.description2148
dc.languageen
dc.publisherPergamon-elsevier Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationEuropean Polymer Journal
dc.relationEur. Polym. J.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectpolyepichlorohydrin
dc.subjectactivated monomer mechanism
dc.subjectcationic ring-opening polymerization
dc.subjectMALDI-TOF mass spectrometry
dc.subjectActivated Monomer Mechanism
dc.subjectCationic-polymerization
dc.subjectMass-spectrometry
dc.subjectPolymers
dc.titleInfluence of polymerization conditions on the molecular weight and polydispersity of polyepichlorohydrin
dc.typeArtículos de revistas


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