Synthesis and characterization of photoactive poly(arylene ether sulfone)s containing azobenzene moieties in their main chains

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• 作者：Xiangyu Jiang ; Xingbo Chen ; Xigui Yue ; Jingjing Zhang ; Shaowei Guan ; Haibo Zhang ; Wenyi Zhang ; Qidai Chen
• 关键词：Azo-polymer ; Poly(arylene ether sulfone) ; Photoactive ; Surface relief grating
• 刊名：Reactive and Functional Polymers
• 出版年：2010
• 出版时间：September 2010
• 年：2010
• 卷：70
• 期：9
• 页码：616-621
• 全文大小：1077 K

文摘

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 °C for azo-PAESs with a content of azo segments above 50 % .