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Introduction of Functional Structures in Nano-Scales into Engineering Polymer Films Using Radiation Technique

Abstract

Introduction of functional regions in nanometer scale in polymeric films using γ-rays, EB, and ion beams are proposed. Two approaches to build nano-scale functional domains in polymer substrates are proposed: 1) Radiation-induced grafting to transfer nano-scale polymer crystalline structures (morphology), acting as a nano-template, to nano-scale graft polymer regions. The obtained polymers with nano structures can be applied to high performance polymer membranes. 2) Fabrication of nanopores and functional domains in engineering plastic films using ion beams, which deposit the energy in very narrow region of polymer films. Hydrophilic grafting polymers are introduced into hydrophobic fluorinated polymers, cross-linked PTFE (cPTFE) and aromatic hydrocarbon polymer, poly(ether ether ketone (PEEK), which is known to have lamella and crystallite in the polymer films. Then, the hierarchical structures of graft domains are analyzed by a small angle neutron scattering (SANS) experiment. From these analyses, the different structures and the different formation of graft domains were observed in fluorinated and hydrocarbon polymer substrates. the grafted domains in the cPTFE film, working as an ion channel, grew as covering the crystallite and the size of domain seems to be similar to that of crystallite. On the other hand, the PEEK-based PEM has a smaller domain size  More>>
Authors:
Maekawa, Y., E-mail: maekawa.yasunari@jaea.go.jp [1] 
  1. Japan Atomic Energy Agency (JAEA), Quantum Beam Science Directorate, High Performance Polymer Group, 1233 Watanuki-Machi, Takasaki, Gunma-ken 370-1292 (Japan)
Publication Date:
Jul 01, 2010
Product Type:
Conference
Report Number:
IAEA-RC-1124.2
Resource Relation:
Conference: 2. research coordination meeting on nanoscale radiation engineering of advanced materials for potential biomedical applications, Paris (France), 15-19 Nov 2010; Other Information: 7 refs., 7 figs.; Related Information: In: Report of the 2nd RCM on nanoscale radiation engineering of advanced materials for potential biomedical applications| 236 p.
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 60 APPLIED LIFE SCIENCES; ABSORPTION; AROMATICS; ETHERS; FABRICATION; FILMS; GRAFT POLYMERS; GRAFTS; HEAVY IONS; HYDROCARBONS; ION BEAMS; KETONES; MORPHOLOGY; NANOSTRUCTURES; NEUTRON DIFFRACTION; PERFORMANCE; SMALL ANGLE SCATTERING; SUBSTRATES; TEFLON
OSTI ID:
22309185
Research Organizations:
International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA14M3048015358
Availability:
Available from INIS in electronic form. Also available on-line: http://www-naweb.iaea.org/napc/iachem/working_materials/RC-1124-2_report_complete.pdf
Submitting Site:
INIS
Size:
page(s) 133-142
Announcement Date:
Feb 28, 2015

Citation Formats

Maekawa, Y., E-mail: maekawa.yasunari@jaea.go.jp. Introduction of Functional Structures in Nano-Scales into Engineering Polymer Films Using Radiation Technique. IAEA: N. p., 2010. Web.
Maekawa, Y., E-mail: maekawa.yasunari@jaea.go.jp. Introduction of Functional Structures in Nano-Scales into Engineering Polymer Films Using Radiation Technique. IAEA.
Maekawa, Y., E-mail: maekawa.yasunari@jaea.go.jp. 2010. "Introduction of Functional Structures in Nano-Scales into Engineering Polymer Films Using Radiation Technique." IAEA.
@misc{etde_22309185,
title = {Introduction of Functional Structures in Nano-Scales into Engineering Polymer Films Using Radiation Technique}
author = {Maekawa, Y., E-mail: maekawa.yasunari@jaea.go.jp}
abstractNote = {Introduction of functional regions in nanometer scale in polymeric films using γ-rays, EB, and ion beams are proposed. Two approaches to build nano-scale functional domains in polymer substrates are proposed: 1) Radiation-induced grafting to transfer nano-scale polymer crystalline structures (morphology), acting as a nano-template, to nano-scale graft polymer regions. The obtained polymers with nano structures can be applied to high performance polymer membranes. 2) Fabrication of nanopores and functional domains in engineering plastic films using ion beams, which deposit the energy in very narrow region of polymer films. Hydrophilic grafting polymers are introduced into hydrophobic fluorinated polymers, cross-linked PTFE (cPTFE) and aromatic hydrocarbon polymer, poly(ether ether ketone (PEEK), which is known to have lamella and crystallite in the polymer films. Then, the hierarchical structures of graft domains are analyzed by a small angle neutron scattering (SANS) experiment. From these analyses, the different structures and the different formation of graft domains were observed in fluorinated and hydrocarbon polymer substrates. the grafted domains in the cPTFE film, working as an ion channel, grew as covering the crystallite and the size of domain seems to be similar to that of crystallite. On the other hand, the PEEK-based PEM has a smaller domain size and it seems to grow independently on the crystallites of PEEK substrate. For nano-fabrication of polymer films using heavy ion beams, the energy distribution in radial direction, which is perpendicular to ion trajectory, is mainly concerned. For penumbra, we re-estimated effective radius of penumbra, in which radiation induced grafting took place, for several different ion beams. We observed the different diameters of the ion channels consisting of graft polymers. The channel sizes were quite in good agreement with the effective penumbra which possess the absorption doses more than 1 kGy. (author)}
place = {IAEA}
year = {2010}
month = {Jul}
}