Positron Annihilation Studies In Polymer Nano-Composites

被引：3

作者：

Chen, H. M. ^{[1
]}

Awad, Somia ^{[1
]}

Jean, Y. C. ^{[1
]}

Yang, J. ^{[2
]}

Lee, L. James ^{[2
]}

机构：

[1] Univ Missouri, Dept Chem, Kansas City, MO 64112 USA

[2] Ohio State Univ, Dept Chem & Bimol Engn, Columbus, OH 43210 USA

来源：

APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: TWENTY-FIRST INTERNATIONAL CONFERENCE | 2011年 / 1336卷

关键词：

Positron; Carbon nanofiber; nanocomposite; INTERFACES; SURFACES;

D O I：

10.1063/1.3586138

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Positron annihilation spectroscopy coupled with a variable mono-energy positron beam has been applied to study nanoscale polymeric nanocomposites. New information about multilayer depth profiles and structures, interfacial free-volume and open space properties have been obtained in polystyrene/carbon nano fiber composites. The S parameter in Doppler Broadening Energy Spectra combined slow positron beam is used to quantitatively represent the free volume, open spaces, and interactions in the interface between polystyrene matrix and carbon nanofibers.

引用

页码：444 / 447

页数：4

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