Study of natural ageing of polypropylene by X-ray photoelectron spectroscopy

被引：24

作者：

Massey, S ^{[1
]}

Roy, D ^{[1
]}

Adnot, A ^{[1
]}

机构：

[1] Univ Laval, Ctr Rech Proprietes Interfaces & Catalyse, Lab Phys Atom & Mol, Fac Sci & Genie, Quebec City, PQ G1K 7P4, Canada

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2003年 / 208卷

关键词：

polypropylene; ageing; XPS; polymers; oxidation;

D O I：

10.1016/S0168-583X(03)00662-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The natural ageing of polypropylene (PP) in a non-controlled environment has been studied by X-ray photoelectron spectroscopy (XPS). Two PP samples were exposed outside for one year and another one was kept as the reference sample (inside at constant temperature). The analysis shows that oxygen is bounded to the polymeric chain and the light seems to act as a catalyst for the oxidation of the material. The main initiator mechanism of oxidation is the scission of the bond between the second carbon atom of the monomer and the associated hydrogen [J. Appl. Polym. Sci. 64 (1997) 2497]. The C1s and O1s spectra show that the most significant bonds between oxygen and PP are C-OH, C=O and O=C-O. According to the intensities of the XPS peaks, the C-OH bonds are the predominant ones in the oxidation process. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：236 / 241

页数：6

共 14 条

[1] SURFACE-POTENTIAL CONTROL IN XPS [J].