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Titolo:
Closed-looped micelles in surfactant tetramer solutions
Autore:
In, M; Aguerre-Chariol, O; Zana, R;
Indirizzi:
CNRS Rhodia, Complex Fluids Lab, Cranbury, NJ 08512 USA CNRS Rhodia Cranbury NJ USA 08512 plex Fluids Lab, Cranbury, NJ 08512 USA Ctr Rech Aubervilliers, F-93308 Aubervilliers, France Ctr Rech Aubervilliers Aubervilliers France F-93308 ubervilliers, France Inst Charles Sadron, F-67000 Strasbourg, France Inst Charles Sadron Strasbourg France F-67000 F-67000 Strasbourg, France
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 37, volume: 103, anno: 1999,
pagine: 7747 - 7750
SICI:
1520-6106(19990916)103:37<7747:CMISTS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
AQUEOUS-SOLUTION; MICROSCOPY; CHAINS;
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: In, M CNRS Rhodia, Complex Fluids Lab, Prospect Plains Rd, Cranbury, NJ 08512 USA CNRS Rhodia Prospect Plains Rd Cranbury NJ USA 08512 y, NJ 08512 USA
Citazione:
M. In et al., "Closed-looped micelles in surfactant tetramer solutions", J PHYS CH B, 103(37), 1999, pp. 7747-7750

Abstract

Formation of a dominant population of closed loops in wormlike micellar systems, theoretically predicted but never reported so far, is achieved with a new cationic surfactant tetramer, The contour length distribution N(L) ofthe closed-looped micelles is determined by transmission electron microscopy at cryogenic temperature. At large contour lengths, the distribution observed scales as N(L) proportional to L-5/2, as expected from ring-chain equilibrium polymerization theory. At small contour lengths, the rigidity-dependent ring closure probability provides a direct estimate of the persistence length. These results re-emphasize the new possibilities offered by surfactant dimers (gemini) and oligomers in obtaining new morphologies in self-assemblies.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 03:43:01