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A novel fluorescence probe for micellization of amphiphilic molecules in water based on intramolecular exciplex formation
Author(s) -
Zhou Jicang,
Yuan Xiaofeng,
Jiang Ming,
Zhang Yunxiang
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20000601)21:9<579::aid-marc579>3.0.co;2-4
Subject(s) - microviscosity , excimer , pyrene , micelle , fluorescence , chemistry , intramolecular force , polyethylene glycol , sodium dodecyl sulfate , photochemistry , amphiphile , peg ratio , molecule , ethylene glycol , polymer chemistry , organic chemistry , aqueous solution , polymer , membrane , copolymer , biochemistry , physics , finance , quantum mechanics , economics
A novel friction‐sensitive fluoresence probe based on intramolecular exciplex formation, (9‐anthrylmethyloxymethyl)pyrene (AMOP), was used to study the micellization of amphiphilic molecules such as sodium dodecyl sulfate (SDS) and hydrocarbon‐modified polyethylene glycol (HM‐PEG) in water. Results demonstrate that AMOP can serve as a sensitive probe for micellization of both SDS and HM‐PEG. In addition, AMOP reveals information about the microviscosity of SDS and HM‐PEG micelles, which is in good agreement with the results obtained from other fluorescence probes based on intramolecular excimer such as dipyrenylpropane (Py(CH 2 ) 3 Py) and bis(1‐pyrenylmethyl) ether (dipyme, PyCH 2 OCH 2 Py).