dc.creator | Sabadini, Edvaldo | |
dc.creator | Egídio, Fernanda do Carmo | |
dc.creator | Cosgrove, Terence | |
dc.date | 2013-Apr | |
dc.date | 2015-11-27T13:31:30Z | |
dc.date | 2015-11-27T13:31:30Z | |
dc.date.accessioned | 2018-03-29T01:17:25Z | |
dc.date.available | 2018-03-29T01:17:25Z | |
dc.identifier | Langmuir : The Acs Journal Of Surfaces And Colloids. v. 29, n. 15, p. 4664-9, 2013-Apr. | |
dc.identifier | 1520-5827 | |
dc.identifier | 10.1021/la304910v | |
dc.identifier | http://www.ncbi.nlm.nih.gov/pubmed/23510502 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/200535 | |
dc.identifier | 23510502 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1300768 | |
dc.description | A 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.description | 29 | |
dc.description | 4664-9 | |
dc.language | eng | |
dc.relation | Langmuir : The Acs Journal Of Surfaces And Colloids | |
dc.relation | Langmuir | |
dc.rights | fechado | |
dc.rights | | |
dc.source | PubMed | |
dc.subject | Polyethylene Glycols | |
dc.subject | Rotaxanes | |
dc.subject | Alpha-cyclodextrins | |
dc.title | More On Polypseudorotaxanes Formed Between Poly(ethylene Glycol) And α-cyclodextrin. | |
dc.type | Artículos de revistas | |