In situ synchrotron radiation X-ray diffraction studies on molecular aggregation structure of nylon 12 films during bulge testing

Ken Kojio, Chigusa Nagano, Aya Fujimoto, Shuhei Nozaki, Kazutoshi Yokomachi, Kazutaka Kamitani, Hirohmi Watanabe, Atsushi Takahara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It is desirable to establish a method for evaluating mechanical properties, such as modulus and strength, of micrometer and sub-micrometer thick polymer films. Bulge tests, where bulge deformation is imposed on films by the pressure of an inert gas, are suitable for satisfying this demand. However, very few studies on polymer films exist in the literature. In this study, bulge testing equipment for in situ synchrotron radiation wide-angle X-ray diffraction (WAXD) measurements is designed and used to study the relationship between the molecular aggregation structure and the mechanical properties of a crystalline nylon 12 (Ny12) film during bulge testing. Isothermally crystallized and quenched Ny12 films exhibited stress-strain curves similar to those obtained by conventional uniaxial elongation. In situ WAXD measurements during bulge testing revealed that the lattice extension of the crystallites is clearly dependent on crystallinity. Concretely, crystallites in the isothermally crystallized film show higher elastic properties than those in the quenched one. The results of the molecular aggregation structure, including the crystal structure and the amorphous chain surrounding the crystallites, of the films during bulge deformation firstly obtained in this study must be useful for designing toughened polymer films.

Original languageEnglish
Pages (from-to)1659-1664
Number of pages6
JournalSoft Matter
Volume14
Issue number9
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Nylon (trademark)
Synchrotron radiation
synchrotron radiation
molecular structure
Agglomeration
X ray diffraction
Crystallites
Polymer films
Testing
diffraction
x rays
crystallites
Noble Gases
Equipment testing
Mechanical properties
micrometers
Stress-strain curves
polymers
Thick films
Crystal lattices

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

In situ synchrotron radiation X-ray diffraction studies on molecular aggregation structure of nylon 12 films during bulge testing. / Kojio, Ken; Nagano, Chigusa; Fujimoto, Aya; Nozaki, Shuhei; Yokomachi, Kazutoshi; Kamitani, Kazutaka; Watanabe, Hirohmi; Takahara, Atsushi.

In: Soft Matter, Vol. 14, No. 9, 01.01.2018, p. 1659-1664.

Research output: Contribution to journalArticle

Kojio, Ken ; Nagano, Chigusa ; Fujimoto, Aya ; Nozaki, Shuhei ; Yokomachi, Kazutoshi ; Kamitani, Kazutaka ; Watanabe, Hirohmi ; Takahara, Atsushi. / In situ synchrotron radiation X-ray diffraction studies on molecular aggregation structure of nylon 12 films during bulge testing. In: Soft Matter. 2018 ; Vol. 14, No. 9. pp. 1659-1664.
@article{84176a52d8dc43e3bfeb9153735a2f39,
title = "In situ synchrotron radiation X-ray diffraction studies on molecular aggregation structure of nylon 12 films during bulge testing",
abstract = "It is desirable to establish a method for evaluating mechanical properties, such as modulus and strength, of micrometer and sub-micrometer thick polymer films. Bulge tests, where bulge deformation is imposed on films by the pressure of an inert gas, are suitable for satisfying this demand. However, very few studies on polymer films exist in the literature. In this study, bulge testing equipment for in situ synchrotron radiation wide-angle X-ray diffraction (WAXD) measurements is designed and used to study the relationship between the molecular aggregation structure and the mechanical properties of a crystalline nylon 12 (Ny12) film during bulge testing. Isothermally crystallized and quenched Ny12 films exhibited stress-strain curves similar to those obtained by conventional uniaxial elongation. In situ WAXD measurements during bulge testing revealed that the lattice extension of the crystallites is clearly dependent on crystallinity. Concretely, crystallites in the isothermally crystallized film show higher elastic properties than those in the quenched one. The results of the molecular aggregation structure, including the crystal structure and the amorphous chain surrounding the crystallites, of the films during bulge deformation firstly obtained in this study must be useful for designing toughened polymer films.",
author = "Ken Kojio and Chigusa Nagano and Aya Fujimoto and Shuhei Nozaki and Kazutoshi Yokomachi and Kazutaka Kamitani and Hirohmi Watanabe and Atsushi Takahara",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c7sm01842h",
language = "English",
volume = "14",
pages = "1659--1664",
journal = "Soft Matter",
issn = "1744-683X",
publisher = "Royal Society of Chemistry",
number = "9",

}

TY - JOUR

T1 - In situ synchrotron radiation X-ray diffraction studies on molecular aggregation structure of nylon 12 films during bulge testing

AU - Kojio, Ken

AU - Nagano, Chigusa

AU - Fujimoto, Aya

AU - Nozaki, Shuhei

AU - Yokomachi, Kazutoshi

AU - Kamitani, Kazutaka

AU - Watanabe, Hirohmi

AU - Takahara, Atsushi

PY - 2018/1/1

Y1 - 2018/1/1

N2 - It is desirable to establish a method for evaluating mechanical properties, such as modulus and strength, of micrometer and sub-micrometer thick polymer films. Bulge tests, where bulge deformation is imposed on films by the pressure of an inert gas, are suitable for satisfying this demand. However, very few studies on polymer films exist in the literature. In this study, bulge testing equipment for in situ synchrotron radiation wide-angle X-ray diffraction (WAXD) measurements is designed and used to study the relationship between the molecular aggregation structure and the mechanical properties of a crystalline nylon 12 (Ny12) film during bulge testing. Isothermally crystallized and quenched Ny12 films exhibited stress-strain curves similar to those obtained by conventional uniaxial elongation. In situ WAXD measurements during bulge testing revealed that the lattice extension of the crystallites is clearly dependent on crystallinity. Concretely, crystallites in the isothermally crystallized film show higher elastic properties than those in the quenched one. The results of the molecular aggregation structure, including the crystal structure and the amorphous chain surrounding the crystallites, of the films during bulge deformation firstly obtained in this study must be useful for designing toughened polymer films.

AB - It is desirable to establish a method for evaluating mechanical properties, such as modulus and strength, of micrometer and sub-micrometer thick polymer films. Bulge tests, where bulge deformation is imposed on films by the pressure of an inert gas, are suitable for satisfying this demand. However, very few studies on polymer films exist in the literature. In this study, bulge testing equipment for in situ synchrotron radiation wide-angle X-ray diffraction (WAXD) measurements is designed and used to study the relationship between the molecular aggregation structure and the mechanical properties of a crystalline nylon 12 (Ny12) film during bulge testing. Isothermally crystallized and quenched Ny12 films exhibited stress-strain curves similar to those obtained by conventional uniaxial elongation. In situ WAXD measurements during bulge testing revealed that the lattice extension of the crystallites is clearly dependent on crystallinity. Concretely, crystallites in the isothermally crystallized film show higher elastic properties than those in the quenched one. The results of the molecular aggregation structure, including the crystal structure and the amorphous chain surrounding the crystallites, of the films during bulge deformation firstly obtained in this study must be useful for designing toughened polymer films.

UR - http://www.scopus.com/inward/record.url?scp=85042717992&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042717992&partnerID=8YFLogxK

U2 - 10.1039/c7sm01842h

DO - 10.1039/c7sm01842h

M3 - Article

AN - SCOPUS:85042717992

VL - 14

SP - 1659

EP - 1664

JO - Soft Matter

JF - Soft Matter

SN - 1744-683X

IS - 9

ER -