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Multicolored electrochromic materials have attracted intense attentions due to their diverse smart applications. In this work, we demonstrate a facile strategy to realize multistage visible/near-infrared (vis/NIR) electrochromism by designing and synthesizing two kinds of novel hyperbranched polyimides (HBPIs) from a novel triamine as an A3 monomer and two dianhydrides as B2 monomers. The resulting...
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