Photochromic behavior of spiropyrans: the effect of substituent

Spiropyrans are among the most promising organic p hotochromic dyes. However, spiropyrans are very sensitive dyes and there are m any independent factors that can affect the performance of these dyes. The effect of substituen t on the optical absorption spectra, fading kinetic, and also the dy...

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Main Authors:	Nadir, Najiah, Wahid, Zaharah, Zainuddin, Mat Tarmizi, Mohamed Islam, Noor Zalikha
Format:	Article
Language:	English English
Published:	Trans Tech Publications, Switzerland 2014
Subjects:	TK Electrical engineering. Electronics Nuclear engineering TK452 Electric apparatus and materials. Electric circuits. Electric networks
Online Access:	http://irep.iium.edu.my/40252/ http://irep.iium.edu.my/40252/1/Photochromic_behavior_of_spiropyrans_The_effect_of__substituent.pdf http://irep.iium.edu.my/40252/4/40252_Photochromic%20behavior%20of%20spiropyrans.SCOPUS.pdf

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spelling	iium-402522017-09-27T03:40:44Z http://irep.iium.edu.my/40252/ Photochromic behavior of spiropyrans: the effect of substituent Nadir, Najiah Wahid, Zaharah Zainuddin, Mat Tarmizi Mohamed Islam, Noor Zalikha TK Electrical engineering. Electronics Nuclear engineering TK452 Electric apparatus and materials. Electric circuits. Electric networks Spiropyrans are among the most promising organic p hotochromic dyes. However, spiropyrans are very sensitive dyes and there are m any independent factors that can affect the performance of these dyes. The effect of substituen t on the optical absorption spectra, fading kinetic, and also the dye stability of spiropyrans in diphenyl ether by UV irradiation has been investigated. The 6-nitro BIPS displayed greater ab sorbance intensity of 0.740% at 600nm compared to 8-ethoxy-6-nitro BIPS of 0.651% at 620n m. Furthermore, 6-nitro BIPS is less stable as it has higher rate constant of 0.1003s -1 and thus lower half-life time (50% decay of the photochromic effect) of 6.9s, in contrast to 8-etho xy-6-nitro BIPS of 0.0594s -1 and 11.7s respectively. Trans Tech Publications, Switzerland 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/40252/1/Photochromic_behavior_of_spiropyrans_The_effect_of__substituent.pdf application/pdf en http://irep.iium.edu.my/40252/4/40252_Photochromic%20behavior%20of%20spiropyrans.SCOPUS.pdf Nadir, Najiah and Wahid, Zaharah and Zainuddin, Mat Tarmizi and Mohamed Islam, Noor Zalikha (2014) Photochromic behavior of spiropyrans: the effect of substituent. Advanced Materials Research, 925 (2014). pp. 323-328. ISSN 1022-6680
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TK Electrical engineering. Electronics Nuclear engineering TK452 Electric apparatus and materials. Electric circuits. Electric networks
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering TK452 Electric apparatus and materials. Electric circuits. Electric networks Nadir, Najiah Wahid, Zaharah Zainuddin, Mat Tarmizi Mohamed Islam, Noor Zalikha Photochromic behavior of spiropyrans: the effect of substituent
description	Spiropyrans are among the most promising organic p hotochromic dyes. However, spiropyrans are very sensitive dyes and there are m any independent factors that can affect the performance of these dyes. The effect of substituen t on the optical absorption spectra, fading kinetic, and also the dye stability of spiropyrans in diphenyl ether by UV irradiation has been investigated. The 6-nitro BIPS displayed greater ab sorbance intensity of 0.740% at 600nm compared to 8-ethoxy-6-nitro BIPS of 0.651% at 620n m. Furthermore, 6-nitro BIPS is less stable as it has higher rate constant of 0.1003s -1 and thus lower half-life time (50% decay of the photochromic effect) of 6.9s, in contrast to 8-etho xy-6-nitro BIPS of 0.0594s -1 and 11.7s respectively.
format	Article
author	Nadir, Najiah Wahid, Zaharah Zainuddin, Mat Tarmizi Mohamed Islam, Noor Zalikha
author_facet	Nadir, Najiah Wahid, Zaharah Zainuddin, Mat Tarmizi Mohamed Islam, Noor Zalikha
author_sort	Nadir, Najiah
title	Photochromic behavior of spiropyrans: the effect of substituent
title_short	Photochromic behavior of spiropyrans: the effect of substituent
title_full	Photochromic behavior of spiropyrans: the effect of substituent
title_fullStr	Photochromic behavior of spiropyrans: the effect of substituent
title_full_unstemmed	Photochromic behavior of spiropyrans: the effect of substituent
title_sort	photochromic behavior of spiropyrans: the effect of substituent
publisher	Trans Tech Publications, Switzerland
publishDate	2014
url	http://irep.iium.edu.my/40252/ http://irep.iium.edu.my/40252/1/Photochromic_behavior_of_spiropyrans_The_effect_of__substituent.pdf http://irep.iium.edu.my/40252/4/40252_Photochromic%20behavior%20of%20spiropyrans.SCOPUS.pdf
first_indexed	2023-09-18T20:57:44Z
last_indexed	2023-09-18T20:57:44Z
_version_	1777410417217241088

Photochromic behavior of spiropyrans: the effect of substituent

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