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(a) VDP of pyrrole with co-vapors on cellulose substrate and a typical photograph of as-prepared PPCL paper. (b–h) SEM images of PPCL papers prepared with co-vapors: (b) methanol, (c) ethanol, (d) water, (e) hexane, (f) toluene, (g) benzene, and (h) none. (left: low mag., right: high mag.).
