Use of FT-IR Reflection-Absorbance Spectroscopy to Study Photochemical Degradation of Polymeric Coatings on Mirrors

Technical Report · Sat May 01 00:00:00 EDT 1982

DOI:https://doi.org/10.2172/5350014· OSTI ID:5350014

Webb, John; Schissel, Paul; Czanderna, A. W.; Smith, D. M.; Chughtai, A. R.

A technique is presented for in situ study of degradative changes in polymeric coatings on metallic substrates. The technique uses a controlled environment chamber in conjunction with a Fourier-transform infrared (FT-IR) spectrophotometer. The chamber design permits collection of IR reflection-absorbance spectra from a sample undergoing exposure to controlled ultraviolet (uv) radiation, gas mixtures, and temperatures. Initial data presented confirm the ability of the technique to provide information regarding the bulk photochemistry of bisphenol-A polycarbonate coatings on gold and aluminum substrates. Refinements of this technique should allow a detailed kinetic study of degradative reactions at the polymer/metal interface.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 5350014
• Report Number(s): SERI/TP-255-1513; ON: DE82015006
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
ABSORPTION SPECTROSCOPY
ALUMINIUM
CHEMICAL REACTIONS
DECOMPOSITION
DESIGN
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPOSURE CHAMBERS
FLUIDS
FOURIER TRANSFORMATION
GASES
GOLD
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
METALS
MIRRORS
OPTICAL PROPERTIES
PHOTOCHEMICAL REACTIONS
PHYSICAL PROPERTIES
POLYMERS
RADIATIONS
SPECTRA
SPECTRAL REFLECTANCE
SPECTROPHOTOMETRY
SPECTROSCOPY
TEMPERATURE EFFECTS
TRANSFORMATIONS
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
controlled ultroviolet
metallic substrates
polymeric coatings