High-resolution X-ray photoelectron spectroscopy of crystalline and amorphous poly(ethylene terephthalate): A study of biaxially oriented film, spin cast film and polymer melt

被引：26

作者：

Beamson, G ^{[1
]}

Clark, DT ^{[1
]}

Hayes, NW ^{[1
]}

Law, DSL ^{[1
]}

Siracusa, V ^{[1
]}

Recca, A ^{[1
]}

机构：

[1] UNIV CATANIA,DEPT CHEM,I-95125 CATANIA,ITALY

来源：

POLYMER | 1996年 / 37卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

X-ray photoelectron spectroscopy; poly(ethylene terephthalate); trans-; gauche-conformation;

D O I：

10.1016/0032-3861(96)82906-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High-resolution monochromated X-ray photoelectron spectroscopy (X.p.s.) (core line and valence band) was used to study polylethylene terephthalate (PET) as biaxially oriented crystalline film, spin cast amorphous film and amorphous polymer melt. On going from crystalline to amorphous PET the C 1s glycol component shifts similar to +0.10 to +0.14 eV, relative to the aromatic and carboxyl components. We ascribe this to the change from trans- to gauche-conformation of the glycol segment. Small differences occur in the valence bands of the crystalline and amorphous samples. Time-dependent studies demonstrate that the melt spectra are not significantly affected by thermal degradation. Under the conditions of the X.p.s. analysis molten PET behaves as an electrical conductor.

引用

页码：379 / 385

页数：7

共 26 条

[1] PERFORMANCE AND APPLICATION OF THE SCIENTA ESCA300 SPECTROMETER [J].