The relaxation of electronic birefringence has been measured in a polydisperse solution of rodlike ionic micelles of cetylpyridinium chloride. The asymptotic behaviour of the relaxation is found to be characterized by a stretched-exponential: R(t)Š≈Šexp [−(t/τ)α]. The value of the exponent α is 0.25 in the dilute regime. As the concentration of rods exceeds the critical concentration for entanglement c*, α grows progressively reaching the value 0.5. A simple theoretical model is presented to explain the dilute-regime results. © 1989 IOP Publishing Ltd.

Bellini, T., Mantegazza, F., Piazza, R., Degiorgio, V. (1989). Stretched-Exponential Relaxation of Electric Birefringence in a Polydisperse Colloidal Solution. EUROPHYSICS LETTERS, 10(5), 499-503 [10.1209/0295-5075/10/5/019].

Stretched-Exponential Relaxation of Electric Birefringence in a Polydisperse Colloidal Solution

MANTEGAZZA, FRANCESCO;
1989

Abstract

The relaxation of electronic birefringence has been measured in a polydisperse solution of rodlike ionic micelles of cetylpyridinium chloride. The asymptotic behaviour of the relaxation is found to be characterized by a stretched-exponential: R(t)Š≈Šexp [−(t/τ)α]. The value of the exponent α is 0.25 in the dilute regime. As the concentration of rods exceeds the critical concentration for entanglement c*, α grows progressively reaching the value 0.5. A simple theoretical model is presented to explain the dilute-regime results. © 1989 IOP Publishing Ltd.
Articolo in rivista - Articolo scientifico
electric birefringence
English
1989
10
5
499
503
none
Bellini, T., Mantegazza, F., Piazza, R., Degiorgio, V. (1989). Stretched-Exponential Relaxation of Electric Birefringence in a Polydisperse Colloidal Solution. EUROPHYSICS LETTERS, 10(5), 499-503 [10.1209/0295-5075/10/5/019].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/32263
Citazioni
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 24
Social impact