Combined Photothermal Lens and Photothermal Mirror Characterization of Polymers

We propose a combined thermal lens and thermal mirror method as concurrent photothermal techniques for the physical characterization of polymers. This combined method is used to investigate polymers as a function of temperature from room temperature up to 170 °C. The method permits a direct determin...

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Veröffentlicht in:Applied spectroscopy 2014-07, Vol.68 (7), p.777-783
Hauptverfasser: Aréstegui, Odon S., Poma, Patricia Y.N., Herculano, Leandro S., Lukasievicz, Gustavo V.B., Guimarães, Francine B., Malacarne, Luis C., Baesso, Mauro L., Bialkowski, Stephen E., Astrath, Nelson G.C.
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container_end_page 783
container_issue 7
container_start_page 777
container_title Applied spectroscopy
container_volume 68
creator Aréstegui, Odon S.
Poma, Patricia Y.N.
Herculano, Leandro S.
Lukasievicz, Gustavo V.B.
Guimarães, Francine B.
Malacarne, Luis C.
Baesso, Mauro L.
Bialkowski, Stephen E.
Astrath, Nelson G.C.
description We propose a combined thermal lens and thermal mirror method as concurrent photothermal techniques for the physical characterization of polymers. This combined method is used to investigate polymers as a function of temperature from room temperature up to 170 °C. The method permits a direct determination of thermal diffusivity and thermal conductivity. Additional measurements of specific heat, linear thermal expansion, and temperature-dependent optical path change are also performed. A complete set of thermal, optical, and mechanical properties of polycarbonate and poly (methyl methacrylate) samples are obtained. Methods presented here can be useful for in situ characterization of semitransparent materials, where fast and non-contacting measurements are required.
doi_str_mv 10.1366/13-07404
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source SAGE Complete A-Z List
subjects Lenses
Mechanical properties
Optical paths
Optical properties
Polycarbonates
Polymethyl methacrylates
Thermal conductivity
Thermal diffusivity
title Combined Photothermal Lens and Photothermal Mirror Characterization of Polymers
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