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    Article

    Adsorption of Pb(II) ion by pyromellitic dianhydride-modified polyvinylamine under programmed-temperature

    Pyromellitic dianhydride-modified polyvinylamine gel (PAPVAM) as absorbent for Pb(II) ion was prepared. Pyromellitic dianhydride acted as cross-linking agent for polyvinylamine and chelating agent for Pb(II) i...

    Hongguang Dai, Nashuang Qian, **anliang Sheng, Lan Shi in Chemical Papers (2023)

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    Article

    Synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by poly(ferric 2-acrylamido-2-methylpropanesulfonate)

    Poly(ferric 2-acrylamido-2-methylpropanesulfonate) (PFAMPS) was prepared via the reaction of poly(2-acrylamido-2-methylpropanesulfonic acid) and Fe(OH)3. PFAMPS was used as a heterogeneous catalyst for the Bigine...

    Zhihao Zhao, Hongguang Dai, Lan Shi in Chemical Papers (2021)