More On Polypseudorotaxanes Formed Between Poly(ethylene Glycol) And α-cyclodextrin

dc.creatorSabadini E.
dc.creatorDo Carmo Egidio F.
dc.creatorCosgrove T.
dc.date2013
dc.date2015-06-25T19:17:26Z
dc.date2015-11-26T15:15:19Z
dc.date2015-06-25T19:17:26Z
dc.date2015-11-26T15:15:19Z
dc.date.accessioned2018-03-28T22:25:09Z
dc.date.available2018-03-28T22:25:09Z
dc.identifier
dc.identifierLangmuir. , v. 29, n. 15, p. 4664 - 4669, 2013.
dc.identifier7437463
dc.identifier10.1021/la304910v
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84876259234&partnerID=40&md5=5c810b4c0cdb01ba6eda0c6196db9c71
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/89552
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/89552
dc.identifier2-s2.0-84876259234
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1258991
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. © 2013 American Chemical Society.
dc.description29
dc.description15
dc.description4664
dc.description4669
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dc.languageen
dc.publisher
dc.relationLangmuir
dc.rightsfechado
dc.sourceScopus
dc.titleMore On Polypseudorotaxanes Formed Between Poly(ethylene Glycol) And α-cyclodextrin
dc.typeArtículos de revistas


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