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Scanning electron micrographs of monolithic poly(butyl methacrylate-co-ethylene dimethacrylate) polymers prepared in a 320 µm I.D. capillary using mixtures consisting of 1-propanol 1,4-butanediol, and water as a porogen. Compositions of porogen: Water 10% 1-propanol-1,4-butanediol 60:30 (A), 62:28 (B), 64:26 (C). Adapted from ref. [20] with permission.
