Bober Patrycja, Minisy Islam M, Morávková Zuzana, Hlídková Helena, Hodan Jiří, Hromádková Jiřina, Acharya Udit
Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 00 Prague, Czech Republic.
Gels. 2023 Jul 17;9(7):582. doi: 10.3390/gels9070582.
Three-dimensional and porous polypyrrole (PPy) aerogels were prepared using a facile two-step procedure in which cryogels were synthesized via the cryopolymerization of pyrrole with iron (III) chloride in the presence of supporting water-soluble polymers (poly(-vinylpyrrolidone), poly(vinyl alcohol), gelatin, methylcellulose or hydroxypropylcellulose), followed by freeze-drying to obtain aerogels. The choice of supporting polymers was found to affect the morphology, porosity, electrical conductivity, and mechanical properties of PPy aerogels. PPy aerogels were successfully used as adsorbents to remove toxic Cr(VI) ions from aqueous solutions.
采用简便的两步法制备了三维多孔聚吡咯（PPy）气凝胶，其中，在水溶性聚合物（聚乙烯吡咯烷酮、聚乙烯醇、明胶、甲基纤维素或羟丙基纤维素）存在的情况下，通过吡咯与氯化铁的低温聚合反应合成冷冻凝胶，然后冷冻干燥得到气凝胶。研究发现，支撑聚合物的选择会影响PPy气凝胶的形态、孔隙率、电导率和机械性能。PPy气凝胶已成功用作吸附剂，用于从水溶液中去除有毒的Cr(VI)离子。
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