Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 정병문 | * |
dc.contributor.author | Pramod B. Shinde | * |
dc.date.accessioned | 2016-08-28T10:08:04Z | - |
dc.date.available | 2016-08-28T10:08:04Z | - |
dc.date.issued | 2013 | * |
dc.identifier.issn | 0024-9297 | * |
dc.identifier.other | OAK-10151 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/223780 | - |
dc.description.abstract | Compared with unmodified F127, the concentration range exhibiting sol-gel transition increased for the CL4-F127-CL4 (F-CL4); however, it decreased for the CL12-F127-CL12 (F-CL12), even though both F-CL4 and F-CL12 were hydrophobically modified by the oligocaprolactone (OCL). To understand the abnormal behavior of the OCL end-capped F127, the difference in basic nanoassemblies among the F127, F-CL4, and F-CL12 were investigated at a low concentration of 0.10 wt % as well as at high concentrations exhibiting sol-gel transitions. Dynamic mechanical analysis, 13C NMR spectroscopy, hydrophobic dye solubilization, dynamic light scattering, microcalorimetry, and transmission electron microscopy suggested that F127's undergo a unimer-to-micelle transition, whereas F-CL4's undergo unimer-to-vesicle transition as the temperature increased. On the other hand, F-CL12's with relatively large end-capped OCL formed aggregated micelle structures that undergo temperature-sensitive conformation changes. In addition, as the temperature increased, sol-to-gel-to-syneresis and gel-to-sol-to-gel-to- syneresis transitions were observed for F-CL4 and F-CL12 aqueous solutions, respectively, whereas a sol-to-gel-to-sol transition was observed for Pluronic F127 aqueous solution. The findings suggest that the end-capping of F127 by OCL induces changes in nanoassemblies, which play a key role in different physicochemical properties leading to the abnormal phase behavior. © 2013 American Chemical Society. | * |
dc.language | English | * |
dc.title | Changes in nanoassembly of oligocaprolactone end-capped Pluronic F127 and the abnormal hydrophobicity trend of phase transition | * |
dc.type | Article | * |
dc.relation.issue | 10 | * |
dc.relation.volume | 46 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 4215 | * |
dc.relation.lastpage | 4222 | * |
dc.relation.journaltitle | Macromolecules | * |
dc.identifier.doi | 10.1021/ma400268r | * |
dc.identifier.wosid | WOS:000319795800057 | * |
dc.identifier.scopusid | 2-s2.0-84878274440 | * |
dc.author.google | Jung Y.K. | * |
dc.author.google | Park M.H. | * |
dc.author.google | Moon H.J. | * |
dc.author.google | Shinde U.P. | * |
dc.author.google | Jeong B. | * |
dc.contributor.scopusid | 정병문(7102237959) | * |
dc.contributor.scopusid | Pramod B. Shinde(8295253800) | * |
dc.date.modifydate | 20240118155902 | * |