Study of Gamma Irradiation Effect on Unplasticized PVC by Positron Annihilation
Study of Gamma Irradiation Effect on Unplasticized PVC by Positron Annihilation
复制标题
正电子湮灭伽马射线对未塑化PVC的影响研究
DOI:
10.4028/www.scientific.net/ddf.373.274
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发表时间:
2017-03
影响因子:
--
通讯作者:
于润升
中科院分区:
文献类型:
--
作者:
王宝义;杨静;曹兴忠;魏龙;于润升
Positron annihilation technique is used to study the gamma irradiation effect on unplasticized PVC (UPVC). Positron annihilation lifetime spectroscopy (PALS) results show that both the o-Ps lifetime and intensity decrease with the increase of gamma irradiation dose. By comparing Coincidence Doppler Broadening (CDB) results of four typical polymers using different reference sample, it is confirmed that CDB ratio curve can truthfully reflect the momentum difference of electrons which positrons annihilate with. The CDB results of gamma-irradiated UPVC using non-irradiated UPVC rather than commonly chosen LDPE as a reference sample show obvious oxygen peak, together with FTIR results, verify the appearance of carbonyl groups around the free volume.
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影响因子:
2.9
作者:
N. Djourelov;Takenori Suzuki;Y. Ito;V. Shantarovich;K. Kondo
通讯作者:
N. Djourelov;Takenori Suzuki;Y. Ito;V. Shantarovich;K. Kondo
影响因子:
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作者:
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DOI:
10.1002/pssa.201228849
发表时间:
2013-09
期刊:
physica status solidi (a)
影响因子:
--
作者:
Haibiao Wu;Xingzhong Cao;G. Cheng;Jianping Wu;Jing Yang;Peng Zhang;Zhuoxin Li;Abu Zayed Mohammad Saliqur R
通讯作者:
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DOI:
10.1142/9789812775610_0001
发表时间:
2003-04
期刊:
--
影响因子:
--
作者:
Y. Jean;P. Mallon;D. M. Schrader
通讯作者:
Y. Jean;P. Mallon;D. M. Schrader
影响因子:
3
作者:
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