COINCIDENCE DOPPLER BROADENING POSITRON ANNIHILATION SPECTROSCOPY STUDIES OF POLYURETHANE MEMBRANES

被引：0

作者：

Constantin, F. ^{[1
]}

Barna, C. ^{[1
]}

Barna, E. ^{[2
]}

Straticiuc, M. ^{[1
]}

Burducea, I. ^{[1
]}

机构：

[1] Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Magurele, Romania

[2] Univ Bucharest, Fac Phys, RO-077125 Bucharest, Romania

来源：

DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES | 2011年 / 6卷 / 02期

关键词：

Positron Annihilation; Coincidence Doppler Broadening Spectroscopy; Polyurethane; Gamma-ray Irradiation; Silver nanostructures; VISCOSITY;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Several polyurethane membranes deposited by electrospinning, with and without silver nanostructures, have been irradiated with gamma-rays with doses ranging between 25 kGy and 100 kGy and the behavior of the free volumes generated by gamma irradiation in these polyurethane membranes was investigated by Coincidence Doppler Broadening Positron Annihilation Spectroscopy. The studies of the wing component revealed the existence of two thresholds in gamma-ray irradiation doses.

引用

页码：543 / 548

页数：6

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