Free volume change of elongated polyethylene films studied using a positron probe microanalyzer

Toshitaka Oka; Nagayasu Oshima; Ryoichi Suzuki; Akira Uedono; Masanori Fujinami; Yoshinori Kobayashi

doi:10.1063/1.4766457

Free volume change of elongated polyethylene films studied using a positron probe microanalyzer

Toshitaka Oka, Nagayasu Oshima, Ryoichi Suzuki, Akira Uedono, Masanori Fujinami, Yoshinori Kobayashi

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Free volume change of low density polyethylene (LDPE) and high density polyethylene (HDPE) films upon mechanical deformation was microscopically investigated by positron probe microanalysis (PPMA). The ortho-positronium (o-Ps) lifetimes were gradually shortened by uniaxial deformation, indicative of shrinkage of the free volume. The o-Ps intensity for HDPE increased by deformation, whereas that for LDPE varied little. It suggests that destruction of crystallites plays an important role in the deformation of HDPE. PPMA is demonstrated to be a promising, powerful probe investigating free volume changes, at different local points subjected to different degrees of deformation, in elongated polymers.

Original language	English
Article number	203108
Journal	Applied Physics Letters
Volume	101
Issue number	20
DOIs	https://doi.org/10.1063/1.4766457
Publication status	Published - 2012 Nov 12
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4766457

Fingerprint Dive into the research topics of 'Free volume change of elongated polyethylene films studied using a positron probe microanalyzer'. Together they form a unique fingerprint.

Cite this

Oka, T., Oshima, N., Suzuki, R., Uedono, A., Fujinami, M., & Kobayashi, Y. (2012). Free volume change of elongated polyethylene films studied using a positron probe microanalyzer. Applied Physics Letters, 101(20), [203108]. https://doi.org/10.1063/1.4766457

@article{e55b2730aedc4d5b89b4f88d158a01f8,

title = "Free volume change of elongated polyethylene films studied using a positron probe microanalyzer",

abstract = "Free volume change of low density polyethylene (LDPE) and high density polyethylene (HDPE) films upon mechanical deformation was microscopically investigated by positron probe microanalysis (PPMA). The ortho-positronium (o-Ps) lifetimes were gradually shortened by uniaxial deformation, indicative of shrinkage of the free volume. The o-Ps intensity for HDPE increased by deformation, whereas that for LDPE varied little. It suggests that destruction of crystallites plays an important role in the deformation of HDPE. PPMA is demonstrated to be a promising, powerful probe investigating free volume changes, at different local points subjected to different degrees of deformation, in elongated polymers.",

author = "Toshitaka Oka and Nagayasu Oshima and Ryoichi Suzuki and Akira Uedono and Masanori Fujinami and Yoshinori Kobayashi",

year = "2012",

month = nov,

day = "12",

doi = "10.1063/1.4766457",

language = "English",

volume = "101",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "20",

}

TY - JOUR

T1 - Free volume change of elongated polyethylene films studied using a positron probe microanalyzer

AU - Oka, Toshitaka

AU - Oshima, Nagayasu

AU - Suzuki, Ryoichi

AU - Uedono, Akira

AU - Fujinami, Masanori

AU - Kobayashi, Yoshinori

PY - 2012/11/12

Y1 - 2012/11/12

N2 - Free volume change of low density polyethylene (LDPE) and high density polyethylene (HDPE) films upon mechanical deformation was microscopically investigated by positron probe microanalysis (PPMA). The ortho-positronium (o-Ps) lifetimes were gradually shortened by uniaxial deformation, indicative of shrinkage of the free volume. The o-Ps intensity for HDPE increased by deformation, whereas that for LDPE varied little. It suggests that destruction of crystallites plays an important role in the deformation of HDPE. PPMA is demonstrated to be a promising, powerful probe investigating free volume changes, at different local points subjected to different degrees of deformation, in elongated polymers.

AB - Free volume change of low density polyethylene (LDPE) and high density polyethylene (HDPE) films upon mechanical deformation was microscopically investigated by positron probe microanalysis (PPMA). The ortho-positronium (o-Ps) lifetimes were gradually shortened by uniaxial deformation, indicative of shrinkage of the free volume. The o-Ps intensity for HDPE increased by deformation, whereas that for LDPE varied little. It suggests that destruction of crystallites plays an important role in the deformation of HDPE. PPMA is demonstrated to be a promising, powerful probe investigating free volume changes, at different local points subjected to different degrees of deformation, in elongated polymers.

UR - http://www.scopus.com/inward/record.url?scp=84870015289&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870015289&partnerID=8YFLogxK

U2 - 10.1063/1.4766457

DO - 10.1063/1.4766457

M3 - Article

AN - SCOPUS:84870015289

VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 20

M1 - 203108

ER -