The effect of p-tert-butylcalix[n]arene on γ-radiation degradation of polypropylene

被引:29
作者
Feng, W [1 ]
Yuan, LH
Zheng, SY
Huang, GL
Qiao, JL
Zhou, Y
机构
[1] Sichuan Univ, Inst Nucl Sci & Technol, Key Lab Radiat Phys & Technol Educ Minist, Chengdu 610064, Sichuan Prov, Peoples R China
[2] Sichuan Univ, Dept Chem, Chengdu 610064, Peoples R China
[3] Beijing Chem Ind Res Inst, Beijing 100013, Peoples R China
关键词
calixarene; polypropylene; gamma-radiation; mechanical properties;
D O I
10.1016/S0969-806X(99)00451-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The gamma-radiation effect of polypropylene was investigated in the presence of three kinds of p-tert-butylcalix[n]arene (n = 4, 6, 8) in air at ambient temperature. The influence of radiation dose and store time upon the mechanical properties of the irradiated PP sheets were measured. The results showed that the radiation stabilization was reduced with the increase of the ring size of calixarenes. Based on the mass spectra and the analysis of post-irradiated product, the mechanism of radiation degradation of p-tert-butylcalix[4]arene has been proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:425 / 429
页数:5
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