Molecular dynamics study of the adhesion between end-grafted polymer films II -effect of grafting density-

Hiroshi Morita, Haruki Miura, Masamichi Yamada, Tetsuo Yamaguchi, Masao Doi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Adhesion between two polymer films consisting of end grafted polymer is studied by coarse-grained molecular dynamics. The grafting density of the polymer film is varied from the dilute mushroom region to dense polymer brush region, and the debonding behavior is studied by varying the temperature. It is shown that below the glass transition temperature, the debonding behavior is mainly determined by grafting density. At low grafting density, fibrils are formed and the stress-strain curve has a plateau region. At high grafting density, the fracture becomes brittle like, and the stress drops sharply after the strain exceeds certain critical values. Above the glass transition temperature, cav ities are formed, and the stress becomes a gradually decreasing function of strain.

Original languageEnglish
Pages (from-to)73-80
Number of pages8
JournalPolymer Journal
Volume39
Issue number1
DOIs
Publication statusPublished - Mar 15 2007
Externally publishedYes

Fingerprint

Polymer films
Molecular dynamics
Adhesion
Debonding
Polymers
Brittle fracture
Brushes
Stress-strain curves
Temperature
Glass transition temperature

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Molecular dynamics study of the adhesion between end-grafted polymer films II -effect of grafting density-. / Morita, Hiroshi; Miura, Haruki; Yamada, Masamichi; Yamaguchi, Tetsuo; Doi, Masao.

In: Polymer Journal, Vol. 39, No. 1, 15.03.2007, p. 73-80.

Research output: Contribution to journalArticle

Morita, Hiroshi ; Miura, Haruki ; Yamada, Masamichi ; Yamaguchi, Tetsuo ; Doi, Masao. / Molecular dynamics study of the adhesion between end-grafted polymer films II -effect of grafting density-. In: Polymer Journal. 2007 ; Vol. 39, No. 1. pp. 73-80.
@article{2a011bad3a0545038cb416f9a70db1d2,
title = "Molecular dynamics study of the adhesion between end-grafted polymer films II -effect of grafting density-",
abstract = "Adhesion between two polymer films consisting of end grafted polymer is studied by coarse-grained molecular dynamics. The grafting density of the polymer film is varied from the dilute mushroom region to dense polymer brush region, and the debonding behavior is studied by varying the temperature. It is shown that below the glass transition temperature, the debonding behavior is mainly determined by grafting density. At low grafting density, fibrils are formed and the stress-strain curve has a plateau region. At high grafting density, the fracture becomes brittle like, and the stress drops sharply after the strain exceeds certain critical values. Above the glass transition temperature, cav ities are formed, and the stress becomes a gradually decreasing function of strain.",
author = "Hiroshi Morita and Haruki Miura and Masamichi Yamada and Tetsuo Yamaguchi and Masao Doi",
year = "2007",
month = "3",
day = "15",
doi = "10.1295/polymj.PJ2006095",
language = "English",
volume = "39",
pages = "73--80",
journal = "Polymer Journal",
issn = "0032-3896",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - Molecular dynamics study of the adhesion between end-grafted polymer films II -effect of grafting density-

AU - Morita, Hiroshi

AU - Miura, Haruki

AU - Yamada, Masamichi

AU - Yamaguchi, Tetsuo

AU - Doi, Masao

PY - 2007/3/15

Y1 - 2007/3/15

N2 - Adhesion between two polymer films consisting of end grafted polymer is studied by coarse-grained molecular dynamics. The grafting density of the polymer film is varied from the dilute mushroom region to dense polymer brush region, and the debonding behavior is studied by varying the temperature. It is shown that below the glass transition temperature, the debonding behavior is mainly determined by grafting density. At low grafting density, fibrils are formed and the stress-strain curve has a plateau region. At high grafting density, the fracture becomes brittle like, and the stress drops sharply after the strain exceeds certain critical values. Above the glass transition temperature, cav ities are formed, and the stress becomes a gradually decreasing function of strain.

AB - Adhesion between two polymer films consisting of end grafted polymer is studied by coarse-grained molecular dynamics. The grafting density of the polymer film is varied from the dilute mushroom region to dense polymer brush region, and the debonding behavior is studied by varying the temperature. It is shown that below the glass transition temperature, the debonding behavior is mainly determined by grafting density. At low grafting density, fibrils are formed and the stress-strain curve has a plateau region. At high grafting density, the fracture becomes brittle like, and the stress drops sharply after the strain exceeds certain critical values. Above the glass transition temperature, cav ities are formed, and the stress becomes a gradually decreasing function of strain.

UR - http://www.scopus.com/inward/record.url?scp=33847776814&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847776814&partnerID=8YFLogxK

U2 - 10.1295/polymj.PJ2006095

DO - 10.1295/polymj.PJ2006095

M3 - Article

AN - SCOPUS:33847776814

VL - 39

SP - 73

EP - 80

JO - Polymer Journal

JF - Polymer Journal

SN - 0032-3896

IS - 1

ER -