STUDY OF THE CHEMILUMINESCENCE SPECTRA AND ITS KINETIC PROPERTIES OF POLYETHYLENE DURING ISOTHERMAL OXIDATION

LUO Zu-bo; CHEN Zhen-qin; TANG Han; LIANG Xing-rong; HE Jun-gao

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STUDY OF THE CHEMILUMINESCENCE SPECTRA AND ITS KINETIC PROPERTIES OF POLYETHYLENE DURING ISOTHERMAL OXIDATION

Research Article | 更新时间：2021-03-19

- STUDY OF THE CHEMILUMINESCENCE SPECTRA AND ITS KINETIC PROPERTIES OF POLYETHYLENE DURING ISOTHERMAL OXIDATION
- Acta Polymerica Sinica Issue 2, Pages: 172-177(1993)
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- Published：20 April 1993，
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LUO Zu-bo, CHEN Zhen-qin, TANG Han, LIANG Xing-rong, HE Jun-gao. STUDY OF THE CHEMILUMINESCENCE SPECTRA AND ITS KINETIC PROPERTIES OF POLYETHYLENE DURING ISOTHERMAL OXIDATION. [J]. Acta Polymerica Sinica (2):172-177(1993)
DOI：

LUO Zu-bo, CHEN Zhen-qin, TANG Han, LIANG Xing-rong, HE Jun-gao. STUDY OF THE CHEMILUMINESCENCE SPECTRA AND ITS KINETIC PROPERTIES OF POLYETHYLENE DURING ISOTHERMAL OXIDATION. [J]. Acta Polymerica Sinica (2):172-177(1993) DOI：

摘要

聚乙烯等温氧化过程的化学发光动力学曲线呈典型的双“S”形变化.反应一开始就出现的小的发光强度的峰值过程

与试样的氧化程度有关

接着出现的发光强度大得多的第二个和第三个峰值过程

对应于自催化氧化反应. 在480-725nm光谱范围依次观测到聚乙烯化学发光动力学曲线中的第一和第三个峰值过程

第二个峰值过程仅在330-400nm光谱范围观测到

在400-480nm光谱范围可观测到所涉及的三个峰值过程。最后

讨论了可能的发光机制.

Abstract

The chemiluminescence kinetic properties were studied in the different spectral regions during oxidation of polyethylene. It is shown that the chemiluminescence from oxidation of polyethylene belongs to both spectral regions in which there are three peak processes. The processes of the first and the third peak were observed in the 480-725nm region successively. The process of the second peak can only by observed in the 330-400nm region. All of the three processes were observed in the 400-480 nm region.Among the three processes

the first peak process is related to the degree of oxidation of the sample

and the second and the third peak processes correspond to autocatalytic oxidation reaction.

关键词

聚乙烯化学发光氧化

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