dc.creatorSabadini, Edvaldo
dc.creatorEgídio, Fernanda do Carmo
dc.creatorCosgrove, Terence
dc.date2013-Apr
dc.date2015-11-27T13:31:30Z
dc.date2015-11-27T13:31:30Z
dc.date.accessioned2018-03-29T01:17:25Z
dc.date.available2018-03-29T01:17:25Z
dc.identifierLangmuir : The Acs Journal Of Surfaces And Colloids. v. 29, n. 15, p. 4664-9, 2013-Apr.
dc.identifier1520-5827
dc.identifier10.1021/la304910v
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/23510502
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200535
dc.identifier23510502
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300768
dc.descriptionA new interpretation for the mechanism associated with the spontaneous threading of α-CD, onto a PEG chain followed by the supramolecular hydrogel formation, is described. Beyond a specific stoichiometry, the complexation of α-CD and PEG results in the formation of a two-phase system. Besides the phase separation, for PEG with a molecular weight higher than 6000 Da, part of the polymer chains are unthreaded by the α-CD, leading to the formation of a supramolecular hydrogel. The kinetics for the complexation and the determination of the yield for equilibrated systems consisting of PEG (linear and star) are used to investigate the number of α-CD threaded before and after the phase separation. The results are compared with the prediction obtained from the application of the Poisson distribution and reveal the ratio between α-CD and PEG in each step of the process. Additionally, the kinetics for the hydrogel formation and its inner structure are investigated by using the proton NMR spin-spin relaxation of water.
dc.description29
dc.description4664-9
dc.languageeng
dc.relationLangmuir : The Acs Journal Of Surfaces And Colloids
dc.relationLangmuir
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectPolyethylene Glycols
dc.subjectRotaxanes
dc.subjectAlpha-cyclodextrins
dc.titleMore On Polypseudorotaxanes Formed Between Poly(ethylene Glycol) And α-cyclodextrin.
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución