Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films

Ayanobu Horinouchi, Hironori Atarashi, Yoshihisa Fujii, Keiji Tanaka

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

At the outermost surface, aggregation states of polymers generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to study the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to determine the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, the sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain part as well as the side chains. Hence, the dynamics observed here may reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

Original languageEnglish
Pages (from-to)4638-4642
Number of pages5
JournalMacromolecules
Volume45
Issue number11
DOIs
Publication statusPublished - Jun 12 2012

Fingerprint

Polymethyl Methacrylate
Polymethyl methacrylates
Water
Surface relaxation
Plasticizers
Angle measurement
Relaxation time
Contact angle
Polymers
Agglomeration
Activation energy
Spectroscopy
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films. / Horinouchi, Ayanobu; Atarashi, Hironori; Fujii, Yoshihisa; Tanaka, Keiji.

In: Macromolecules, Vol. 45, No. 11, 12.06.2012, p. 4638-4642.

Research output: Contribution to journalArticle

Horinouchi, Ayanobu ; Atarashi, Hironori ; Fujii, Yoshihisa ; Tanaka, Keiji. / Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films. In: Macromolecules. 2012 ; Vol. 45, No. 11. pp. 4638-4642.
@article{7f5c0fe63b184cb296d30586e0fc4fef,
title = "Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films",
abstract = "At the outermost surface, aggregation states of polymers generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to study the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to determine the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, the sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain part as well as the side chains. Hence, the dynamics observed here may reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.",
author = "Ayanobu Horinouchi and Hironori Atarashi and Yoshihisa Fujii and Keiji Tanaka",
year = "2012",
month = "6",
day = "12",
doi = "10.1021/ma3002559",
language = "English",
volume = "45",
pages = "4638--4642",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "11",

}

TY - JOUR

T1 - Dynamics of water-induced surface reorganization in poly(methyl methacrylate) films

AU - Horinouchi, Ayanobu

AU - Atarashi, Hironori

AU - Fujii, Yoshihisa

AU - Tanaka, Keiji

PY - 2012/6/12

Y1 - 2012/6/12

N2 - At the outermost surface, aggregation states of polymers generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to study the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to determine the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, the sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain part as well as the side chains. Hence, the dynamics observed here may reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

AB - At the outermost surface, aggregation states of polymers generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to study the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to determine the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, the sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain part as well as the side chains. Hence, the dynamics observed here may reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

UR - http://www.scopus.com/inward/record.url?scp=84862236238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862236238&partnerID=8YFLogxK

U2 - 10.1021/ma3002559

DO - 10.1021/ma3002559

M3 - Article

AN - SCOPUS:84862236238

VL - 45

SP - 4638

EP - 4642

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 11

ER -