Step-scan FT-IR photoacoustic studies of a double-layered polymer film on metal substrates

被引：13
|
作者：
Wahls, MWC [1 ]
Leyte, JC [1 ]
机构：
[1] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs Phys & Macromol Chem, NL-2300 RA Leiden, Netherlands
来源：
APPLIED SPECTROSCOPY | 1998年 / 52卷 / 01期
关键词：
step-scan FT-IR; PAS; phase analysis; phase-resolved depth profiling; multilayers; adhesion; polymer-coating systems;
D O I：
10.1366/0003702981942447
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The influence of various metal substrates on the photoacoustic response of a double-layered polymer coating (polypropylene on a polybutylacrylate-adhesive) is demonstrated. The extended Rosencwaig-Gersho theory by Fernelius for a double-layered sample is used to discuss the step-scan Fourier transform infrared photoacoustic spectroscopy (FT-IR PAS) experimental results, A clear dependence of the photoacoustic phase phi on the thermal diffusivity alpha of the metal substrate is found. Therefore, the quality of the thermal contact between the polymer coating and the metal substrate influences the photoacoustic phase spectrum.
引用
收藏
页码：123 / 127
页数：5
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