Facile and Efficient Incorporation of Methacrylate Groups into Poly(amic acid) via an Acid-Catalyzed One-Pot Esterification

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ID: 324526
2026
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Ranked #735 of 822 articles by views in phytochemistry letters

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Abstract
Abstract Herein, we report a one-pot esterification of poly(amic acid) (PAA) using 2-vinyloxyethyl methacrylate (VEMA) under acidic conditions. A model reaction afforded the corresponding hemiacetal ester in 94% yield. Applying this method to PAA enabled direct introduction of methacrylate-functionalized hemiacetal groups at room temperature. (+)-Camphorsulfonic acid provided stable esterification without gelation, achieving 71% conversion after storage at 5 °C for 7 days. This method offers a simple route to negative-tone alkali-developable PSPI materials.
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Authors
Journal phytochemistry letters
Year 2026
DOI
10.1093/chemle/upag156
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