Soft macroporous conducting polypyrrole/gelatin cryogels were prepared by a single-step oxidation of pyrrole in the frozen aqueous solution of gelatin. Corresponding aerogels were obtained after freeze-drying of cryogels. Polypyrrole component was collected after removing gelatin by acid hydrolysis. Such polypyrrole has unique macroporous morphology with pore walls composed of two-dimensional sheets. Its mechanical integrity proved the connectivity of the conducting phase in cryogels. Macroporous free-standing polypyrrole obtained after hydrolytic removal of gelatin had conductivity and specific surface area one order of magnitude higher than both the precursor aerogel and the reference polypyrrole prepared by cryotechnique in the absence of gelatin.

通过在明胶的冷冻水溶液中对吡咯进行一步氧化来制备柔软的大孔导电聚吡咯/明胶凝胶。冷冻干燥后，可获得相应的气凝胶。通过酸水解除去明胶后，收集聚吡咯成分。这种聚吡咯具有独特的大孔形态，其孔壁由二维片组成。它的机械完整性证明了冰晶中导电相的连通性。水解除去明胶后获得的大孔自立聚吡咯的电导率和比表面积比在不存在明胶的情况下通过低温技术制备的前体气凝胶和参比聚吡咯高一个数量级。