Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 70, Issue 9, Pages 616-621Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2010.05.007
Keywords
Azo-polymer; Poly(arylene ether sulfone); Photoactive; Surface relief grating
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A series of azobenzene functionalized poly(arylene ether sulfone)s (azo-PAESs) has been synthesized via nucleophilic aromatic substitution polycondensation, and azobenzene chromophores could be introduced into the polymer main chains by copolymerization from azo-monomers. These main chain type azo-PAESs have high glass transition temperatures and good thermal stability. Exposed to an interference pattern laser beam, spin-coated films of the azo-PAESs can form clear and stable surface relief gratings (SRGs). These SRGs show increased thermal stabilities with the content of azo moieties and cannot be fully removed until the temperature increases to 300 degrees C for azo-PAESs with a content of azo segments above 50%. (C) 2010 Elsevier Ltd. All rights reserved.
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