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Sifat Transmisi, Pekali Pupusan dan Keterpantulan Optik Kepingan Poli(metil metakrilat) (PMMA) Didop dengan Metil Merah dan Ferum (III) Asetilasetonat

Mat Yunus, W. Mahmood and Moksin, Mohd Maarof and Wan Yunus, Wan Md Zin and Abdul Wahab, Noraini and Umam, Azizah (1999) Sifat Transmisi, Pekali Pupusan dan Keterpantulan Optik Kepingan Poli(metil metakrilat) (PMMA) Didop dengan Metil Merah dan Ferum (III) Asetilasetonat. Pertanika Journal of Science & Technology, 7 (1). pp. 43-55. ISSN 0128-7680

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Abstract

The optical transmission, reflection and extinction coefficient of a PMMA doped with methylene-red (PMMA-MM) and ferum (III) acetylacetonate (PMMA-FM) are presented. A rapid change of the optical transmission was observed in the range of wavelength (420-650 nm) and (500 - 600nm) for PMMA-FM and PMMAMM respectively. Eventhough the decrease of the optical transmission and the increase of the extinction coefficient do not linearly relate with increasing concentration of methylene-red and ferum (III) asetilasetonate, the transmission curve and the cut off transmission are still affected by doping concentration. It was found that the cut off value for PMMA-MM shifted from 200nm (for pure PMMA) to 550 nm when the concentration was increased to 6.3 31O-3mmol/g. A similar shift (200nm to 500nm) was also observed for PMMA-FM but with a higher doping concentration (i.e 30.7310-3 mmol/g).

Item Type:Article
Keyword:Transmisi optik, Pekali pupusan, Keterpantulan optik dan indeks biasan
Faculty or Institute:Faculty of Science
Publisher:Universiti Putra Malaysia Press
ID Code:3493
Deposited By: Nur Izzati Mohd Zaki
Deposited On:26 Nov 2009 08:17
Last Modified:27 May 2013 07:08

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