Gas sorption into surface of poly(methyl methacrylate) films at atmospheric Pressure

Yoshihisa Fujii; Hironori Atarashi; Norifumi Yamada; Naoya Torikai; Toshihiko Nagamura; Keiji Tanaka

doi:10.1295/polymj.PJ2007070

Gas sorption into surface of poly(methyl methacrylate) films at atmospheric Pressure

Yoshihisa Fujii, Hironori Atarashi, Norifumi Yamada, Naoya Torikai, Toshihiko Nagamura, Keiji Tanaka

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Interfacial structure of deuterated poly(methyl methacrylate) (dPMMA) and polystyrene (dPS) films with gases such as carbon dioxide (CO₂) and nitrogen (Ni) under a pressure of 0.1 MPa was examined by neutron reflectivity (NR). The interface was analyzed using a model that the density of the outermost region of the films was lower than that of the interior region. The density profile was expressed by a single exponential equation with a decay length (ζ). The &zeta. values for the dPMMA films under CO₂ and N₂ were larger than that under vacuum at a given temperature, and the extent was more remarkable under CO₂ than under N₂. On the other hand, such a gas sorption was not clearly discerned for the dPS films. Finally, the surface relaxation in the dPMMA and dPS films under CO₂ and N₂ was discussed on the basis of lateral force measurements.

Original language	English
Pages (from-to)	1290-1294
Number of pages	5
Journal	Polymer Journal
Volume	39
Issue number	12
DOIs	https://doi.org/10.1295/polymj.PJ2007070
Publication status	Published - 2007

Keywords

Density profiles
Interface
Neutron reflectivity
Poly(methyl methacrylate)
Polystyrene

ASJC Scopus subject areas

Polymers and Plastics
Materials Chemistry

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Fujii, Y., Atarashi, H., Yamada, N., Torikai, N., Nagamura, T., & Tanaka, K. (2007). Gas sorption into surface of poly(methyl methacrylate) films at atmospheric Pressure. Polymer Journal, 39(12), 1290-1294. https://doi.org/10.1295/polymj.PJ2007070

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title = "Gas sorption into surface of poly(methyl methacrylate) films at atmospheric Pressure",

abstract = "Interfacial structure of deuterated poly(methyl methacrylate) (dPMMA) and polystyrene (dPS) films with gases such as carbon dioxide (CO2) and nitrogen (Ni) under a pressure of 0.1 MPa was examined by neutron reflectivity (NR). The interface was analyzed using a model that the density of the outermost region of the films was lower than that of the interior region. The density profile was expressed by a single exponential equation with a decay length (ζ). The &zeta. values for the dPMMA films under CO2 and N2 were larger than that under vacuum at a given temperature, and the extent was more remarkable under CO2 than under N2. On the other hand, such a gas sorption was not clearly discerned for the dPS films. Finally, the surface relaxation in the dPMMA and dPS films under CO2 and N2 was discussed on the basis of lateral force measurements.",

keywords = "Density profiles, Interface, Neutron reflectivity, Poly(methyl methacrylate), Polystyrene",

author = "Yoshihisa Fujii and Hironori Atarashi and Norifumi Yamada and Naoya Torikai and Toshihiko Nagamura and Keiji Tanaka",

year = "2007",

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T1 - Gas sorption into surface of poly(methyl methacrylate) films at atmospheric Pressure

AU - Fujii, Yoshihisa

AU - Atarashi, Hironori

AU - Yamada, Norifumi

AU - Torikai, Naoya

AU - Nagamura, Toshihiko

AU - Tanaka, Keiji

PY - 2007

Y1 - 2007

N2 - Interfacial structure of deuterated poly(methyl methacrylate) (dPMMA) and polystyrene (dPS) films with gases such as carbon dioxide (CO2) and nitrogen (Ni) under a pressure of 0.1 MPa was examined by neutron reflectivity (NR). The interface was analyzed using a model that the density of the outermost region of the films was lower than that of the interior region. The density profile was expressed by a single exponential equation with a decay length (ζ). The &zeta. values for the dPMMA films under CO2 and N2 were larger than that under vacuum at a given temperature, and the extent was more remarkable under CO2 than under N2. On the other hand, such a gas sorption was not clearly discerned for the dPS films. Finally, the surface relaxation in the dPMMA and dPS films under CO2 and N2 was discussed on the basis of lateral force measurements.

AB - Interfacial structure of deuterated poly(methyl methacrylate) (dPMMA) and polystyrene (dPS) films with gases such as carbon dioxide (CO2) and nitrogen (Ni) under a pressure of 0.1 MPa was examined by neutron reflectivity (NR). The interface was analyzed using a model that the density of the outermost region of the films was lower than that of the interior region. The density profile was expressed by a single exponential equation with a decay length (ζ). The &zeta. values for the dPMMA films under CO2 and N2 were larger than that under vacuum at a given temperature, and the extent was more remarkable under CO2 than under N2. On the other hand, such a gas sorption was not clearly discerned for the dPS films. Finally, the surface relaxation in the dPMMA and dPS films under CO2 and N2 was discussed on the basis of lateral force measurements.

KW - Density profiles

KW - Interface

KW - Neutron reflectivity

KW - Poly(methyl methacrylate)

KW - Polystyrene

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