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231224s2013 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la304910v
|2 doi
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|a pubmed25n0753.xml
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|a (NLM)23510502
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Sabadini, Edvaldo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a More on polypseudorotaxanes formed between poly(ethylene glycol) and α-cyclodextrin
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 26.09.2013
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Rotaxanes
|2 NLM
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|a alpha-Cyclodextrins
|2 NLM
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| 650 |
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|a Polyethylene Glycols
|2 NLM
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| 650 |
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|a 3WJQ0SDW1A
|2 NLM
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| 700 |
1 |
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|a Egídio, Fernanda do Carmo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cosgrove, Terence
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 29(2013), 15 vom: 16. Apr., Seite 4664-9
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|x 1520-5827
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|g volume:29
|g year:2013
|g number:15
|g day:16
|g month:04
|g pages:4664-9
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|u http://dx.doi.org/10.1021/la304910v
|3 Volltext
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