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Titolo:
THE VISCOELASTIC PROPERTIES OF MONOLAYERS OF POLYMERIC AMPHIPHILES WITH MESOGENIC GROUPS
Autore:
PENG JB; BARNES GT; ABRAHAM BM;
Indirizzi:
UNIV QUEENSLAND,DEPT CHEM ST LUCIA QLD 4072 AUSTRALIA NORTHWESTERN UNIV,DEPT PHYS & ASTRON EVANSTON IL 60208
Titolo Testata:
Thin solid films
fascicolo: 1-2, volume: 242, anno: 1994,
pagine: 254 - 257
SICI:
0040-6090(1994)242:1-2<254:TVPOMO>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SURFACE-PRESSURE-GRADIENTS; SHEAR MODULUS; VISCOSITY; TENSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
J.B. Peng et al., "THE VISCOELASTIC PROPERTIES OF MONOLAYERS OF POLYMERIC AMPHIPHILES WITH MESOGENIC GROUPS", Thin solid films, 242(1-2), 1994, pp. 254-257

Abstract

The viscoelastic behavior of monolayers of three polymeric amphiphiles with hydrophobic mesogenic side chains was observed by dynamic measurements. The copolymer with a long flexible and hydrophilic main chainbetween side chains exhibited very low values of viscosity and shear modulus at all accessible surface pressures. For the other two polymers with shorter segments of main chain between side chains these valuesincreased steeply with compression through areas lower than 0.4 nm2 per monomer, reaching viscosities as high as 1 N s m-1 and shear moduliof 10 mN m-1.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 07:59:20