Ordered macroporous polyacrylonitrile (mPAN) materials with 101–103 nm pore diameter were prepared by radical polymerization using colloidal silica as a template followed by removal of the template. Both ordered macroporous carbon and hydrogels were derived from mPAN by means of pyrolysis and alkaline hydrolysis, respectively, whose morphology and composition were characterized experimentally.
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Bu et al. (2002) studied this question.