Published January 2006 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Centre for Photo-manipulation and Photo-analysis of Materials, Department of Engineering Systems and Department of Materials and Medical Sciences, Cranfield University, Shrivenham SN6 8LA (United Kingdom)
  • 2. Department of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT (United Kingdom)

Description

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

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2005.09.025;
PII
S1359-6462(05)00565-8;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
54
Journal Issue
2
Journal Page Range
p. 257-261
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38062060
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CONFORMATIONAL CHANGES; COPOLYMERS; FLEXIBILITY; IRRADIATION; ISOMERIZATION; THIN FILMS; ULTRAVIOLET RADIATION
Descriptors DEC
CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; FILMS; MECHANICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; RADIATIONS; TENSILE PROPERTIES

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.