Heat Treatment at Different Temperatures and its Effect on the Optical Properties of Pure PMMA and PMMA-Coumarin

The effect of thermal treatment on optical constants of pure PMMA and with addition (15 and 35) ml of coumarin at different temperatures (100, 110 and 120) C0 for 1 hour were investigated. Cast method used to prepares films of pure PMMA and PMMA with (15 and 35) of coumarin. UV/VIS spectrometer tech...

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Bibliographic Details
Published inKey engineering materials Vol. 900; pp. 42 - 47
Main Authors Kadhum, Farah Jawad, Zainab, J.N., Shaban, Auday H., Jasim, Kareem Ali
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 20.09.2021
Subjects
Absorption spectra
Absorptivity
Coumarin
Energy gap
Heat treatment
Optical properties
Polymethyl methacrylate
Effect of Temperatures
Optical Constant
Coumarin
Poly(Methyl Meth Acrylate) (PMMA)
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Summary:The effect of thermal treatment on optical constants of pure PMMA and with addition (15 and 35) ml of coumarin at different temperatures (100, 110 and 120) C0 for 1 hour were investigated. Cast method used to prepares films of pure PMMA and PMMA with (15 and 35) of coumarin. UV/VIS spectrometer technique used to measure the absorption spectra for these films. The optical constant (absorption spectra and absorption coefficient) don’t changes after applied temperatures in pure PMMA film but the optical constant (absorption spectra and absorption coefficient) in PMMA with (15 and 35) ml of coumarin increased with applied temperatures. The optical energy gap of pure PMMA and PMMA with (15 and 35) ml of coumarin slightly decreased after applied temperature up to 1200 C.
Bibliography:Special topic volume with invited peer-reviewed papers only
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.900.42