Please use this identifier to cite or link to this item:
|Title:||Effect of chain length of PEO on the gelation and micellization of the pluronic F127 copolymer aqueous system|
|Citation:||Pragatheeswaran, A.M., Chen, S.B. (2013-08-06). Effect of chain length of PEO on the gelation and micellization of the pluronic F127 copolymer aqueous system. Langmuir 29 (31) : 9694-9701. ScholarBank@NUS Repository. https://doi.org/10.1021/la401639g|
|Abstract:||The effect of adding homopolymer poly(ethylene oxide) (PEO) on the sol/gel behavior of amphiphilic triblock copolymer Pluronic F127 ((EO) 98(PO)67(EO)98) in aqueous media is explored. Emphasis is placed on the influence of the PEO molecular weight and concentration on micellization and gelation and the exploration of their correlation. PEO is always found to lower the critical micellization temperature modestly. However, short PEO chains promote the gelation of F127, and long chains delay or even curb gel formation. Micelle size measurements and cryo-TEM micrographs provide evidence for micellar aggregation via the bridging of long PEO chains or depletion flocculation, thereby impeding the ordering of micelles for gel formation. © 2013 American Chemical Society.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 14, 2019
WEB OF SCIENCETM
checked on Jan 7, 2019
checked on Dec 28, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.