Investigation of reversible photo-mechanical properties of azobenzene-based polymer films by nano-indentation

M Moniruzzaman; P Zioupos; Gerard Fernando

doi:10.1016/j.scriptamat.2005.09.025

Investigation of reversible photo-mechanical properties of azobenzene-based polymer films by nano-indentation

M Moniruzzaman, P Zioupos, Gerard Fernando

Metallurgy and Materials

Research output: Contribution to journal › Article

23 Citations (Scopus)

Abstract

Photo-induced mechanical properties of two copolymer thin films with 3.5 and 6 mol% azobenzene chromophores in the side chain, were investigated by nanoindentation. After ultraviolet irradiation the stiffness of the films was found to increase by about 10-28% compared to their original 'virgin' state. The altered mechanical properties were attributed to conformational changes in the polymer chains via a trans-cis isomerisation of the chromophores. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	257 - 261
Number of pages	5
Journal	Scripta Materialia
Volume	54
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2005.09.025
Publication status	Published - 1 Jan 2006

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abstract = "Photo-induced mechanical properties of two copolymer thin films with 3.5 and 6 mol% azobenzene chromophores in the side chain, were investigated by nanoindentation. After ultraviolet irradiation the stiffness of the films was found to increase by about 10-28% compared to their original 'virgin' state. The altered mechanical properties were attributed to conformational changes in the polymer chains via a trans-cis isomerisation of the chromophores. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.",

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AU - Zioupos, P

AU - Fernando, Gerard

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N2 - Photo-induced mechanical properties of two copolymer thin films with 3.5 and 6 mol% azobenzene chromophores in the side chain, were investigated by nanoindentation. After ultraviolet irradiation the stiffness of the films was found to increase by about 10-28% compared to their original 'virgin' state. The altered mechanical properties were attributed to conformational changes in the polymer chains via a trans-cis isomerisation of the chromophores. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

AB - Photo-induced mechanical properties of two copolymer thin films with 3.5 and 6 mol% azobenzene chromophores in the side chain, were investigated by nanoindentation. After ultraviolet irradiation the stiffness of the films was found to increase by about 10-28% compared to their original 'virgin' state. The altered mechanical properties were attributed to conformational changes in the polymer chains via a trans-cis isomerisation of the chromophores. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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DO - 10.1016/j.scriptamat.2005.09.025

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SP - 257

EP - 261

JO - Scripta Materialia

JF - Scripta Materialia

IS - 2

ER -

Investigation of reversible photo-mechanical properties of azobenzene-based polymer films by nano-indentation

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