Synthesis, characterization, and thermo-
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Fengxian Qiu; Wei Zhang; Dongya Yang; Minjian Zhao; Guorong Cao; Pingping Li
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Article
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2010
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John Wiley and Sons
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English
⚖ 366 KB
👁 2 views
## Abstract An optically active levoazobenzene polyurethane (PU) was synthesized and was based on the chromophore 4‐(4′‐nitrophenylazo) phenylamine, the chiral reagent L(−)‐tartaric acid, and toluene diisocyanate. The chemical structure and thermal properties were characterized by ultraviolet–visib