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An injectable biodegradable pH/temperature-sensitive oligo(β-amino ester urethane) (OAEU) was synthesized. The OAEU was synthesized by addition polymerization between the isocyanate groups of 1,6-diisocyanato hexamethylene and the hydroxyl groups of a synthesized monomer piperazine dihydroxyl amino ester (monomer PDE) in chloroform in the presence of dibutyltin dilaurate as a catalyst. The synthesized...
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