Surface characterization and study of Langmuir films of

Ligia Gargallo, Beatriz Miranda, Hernán Ríos, Fernando González-Nilo, Deodato Radi

Resultado de la investigación: Article

12 Citas (Scopus)

Resumen

The surface behaviour of poly(4-vinylpyridine)s (P4VP) quaternized with four different alkyl chains (pentyl, hexyl, octyl and decy bromide) were studied. Surface pressure-area isotherms (π-A) at the air-water interface were determined. Depending on the length of the side-chains, the π-A isotherms show a plateau region. An extensive plateau is observed for n>6. The plateau pressures are similar for n=8 and n=10. The monolayers are stable and exhibit hysteresis phenomena. Brewster angle microscopy (BAM) is used to monitor the monolayer topography of the polymer on the water subphase. To obtain information about the surface energy (SE) and the degree of hydrophobicity of these systems, we have estimated the critical surface tension, γc, and the dispersion force and polar contributions to SE, γD and γp, respectively, by measurements of the contact angle (CA) of water and bromobenzene on the polymer surface. The results obtained are depend on the length of the alkyl lateral chain of the functionalized polymers.

Idioma originalEnglish
Páginas (desde-hasta)858-862
Número de páginas5
PublicaciónPolymer International
Volumen50
N.º8
DOI
EstadoPublished - ago 2001

Huella dactilar

Langmuir Blodgett films
Polymers
Interfacial energy
Isotherms
Water
Monolayers
Hydrophobicity
Bromides
Topography
Contact angle
Surface tension
Hysteresis
Microscopic examination
Air

ASJC Scopus subject areas

  • Polymers and Plastics

Citar esto

Gargallo, Ligia ; Miranda, Beatriz ; Ríos, Hernán ; González-Nilo, Fernando ; Radi, Deodato. / Surface characterization and study of Langmuir films of. En: Polymer International. 2001 ; Vol. 50, N.º 8. pp. 858-862.
@article{44ca4bc914cc49f8aa99cc733ae69975,
title = "Surface characterization and study of Langmuir films of",
abstract = "The surface behaviour of poly(4-vinylpyridine)s (P4VP) quaternized with four different alkyl chains (pentyl, hexyl, octyl and decy bromide) were studied. Surface pressure-area isotherms (π-A) at the air-water interface were determined. Depending on the length of the side-chains, the π-A isotherms show a plateau region. An extensive plateau is observed for n>6. The plateau pressures are similar for n=8 and n=10. The monolayers are stable and exhibit hysteresis phenomena. Brewster angle microscopy (BAM) is used to monitor the monolayer topography of the polymer on the water subphase. To obtain information about the surface energy (SE) and the degree of hydrophobicity of these systems, we have estimated the critical surface tension, γc, and the dispersion force and polar contributions to SE, γD and γp, respectively, by measurements of the contact angle (CA) of water and bromobenzene on the polymer surface. The results obtained are depend on the length of the alkyl lateral chain of the functionalized polymers.",
keywords = "Brewster angle microscopy, Contact angle, Langmuir films, Monolayers, Poly(4-vinylpyridine)s quaternized, Surface-area isotherms",
author = "Ligia Gargallo and Beatriz Miranda and Hern{\'a}n R{\'i}os and Fernando Gonz{\'a}lez-Nilo and Deodato Radi",
year = "2001",
month = "8",
doi = "10.1002/pi.710",
language = "English",
volume = "50",
pages = "858--862",
journal = "Polymer International",
issn = "0959-8103",
publisher = "John Wiley and Sons Ltd",
number = "8",

}

Gargallo, L, Miranda, B, Ríos, H, González-Nilo, F & Radi, D 2001, 'Surface characterization and study of Langmuir films of', Polymer International, vol. 50, n.º 8, pp. 858-862. https://doi.org/10.1002/pi.710

Surface characterization and study of Langmuir films of. / Gargallo, Ligia; Miranda, Beatriz; Ríos, Hernán; González-Nilo, Fernando; Radi, Deodato.

En: Polymer International, Vol. 50, N.º 8, 08.2001, p. 858-862.

Resultado de la investigación: Article

TY - JOUR

T1 - Surface characterization and study of Langmuir films of

AU - Gargallo, Ligia

AU - Miranda, Beatriz

AU - Ríos, Hernán

AU - González-Nilo, Fernando

AU - Radi, Deodato

PY - 2001/8

Y1 - 2001/8

N2 - The surface behaviour of poly(4-vinylpyridine)s (P4VP) quaternized with four different alkyl chains (pentyl, hexyl, octyl and decy bromide) were studied. Surface pressure-area isotherms (π-A) at the air-water interface were determined. Depending on the length of the side-chains, the π-A isotherms show a plateau region. An extensive plateau is observed for n>6. The plateau pressures are similar for n=8 and n=10. The monolayers are stable and exhibit hysteresis phenomena. Brewster angle microscopy (BAM) is used to monitor the monolayer topography of the polymer on the water subphase. To obtain information about the surface energy (SE) and the degree of hydrophobicity of these systems, we have estimated the critical surface tension, γc, and the dispersion force and polar contributions to SE, γD and γp, respectively, by measurements of the contact angle (CA) of water and bromobenzene on the polymer surface. The results obtained are depend on the length of the alkyl lateral chain of the functionalized polymers.

AB - The surface behaviour of poly(4-vinylpyridine)s (P4VP) quaternized with four different alkyl chains (pentyl, hexyl, octyl and decy bromide) were studied. Surface pressure-area isotherms (π-A) at the air-water interface were determined. Depending on the length of the side-chains, the π-A isotherms show a plateau region. An extensive plateau is observed for n>6. The plateau pressures are similar for n=8 and n=10. The monolayers are stable and exhibit hysteresis phenomena. Brewster angle microscopy (BAM) is used to monitor the monolayer topography of the polymer on the water subphase. To obtain information about the surface energy (SE) and the degree of hydrophobicity of these systems, we have estimated the critical surface tension, γc, and the dispersion force and polar contributions to SE, γD and γp, respectively, by measurements of the contact angle (CA) of water and bromobenzene on the polymer surface. The results obtained are depend on the length of the alkyl lateral chain of the functionalized polymers.

KW - Brewster angle microscopy

KW - Contact angle

KW - Langmuir films

KW - Monolayers

KW - Poly(4-vinylpyridine)s quaternized

KW - Surface-area isotherms

UR - http://www.scopus.com/inward/record.url?scp=0035423645&partnerID=8YFLogxK

U2 - 10.1002/pi.710

DO - 10.1002/pi.710

M3 - Article

AN - SCOPUS:0035423645

VL - 50

SP - 858

EP - 862

JO - Polymer International

JF - Polymer International

SN - 0959-8103

IS - 8

ER -