| Abstract
| - Block copolymers of poly(pentafluorostyrene) (PFS) and poly(tert-butyl acrylate) (PtBA), or PFS-b-PtBAcopolymers, were synthesized via consecutive atom transfer radical polymerizations (ATRPs). Amphiphilicblock copolymers of PFS and poly(acrylic acid) (PFS-b-PAAC copolymers) were prepared via hydrolysisof the corresponding PFS-b-PtBA copolymers. The chemical structure and composition of the PFS-b-PtBAand PFS-b-PAAC block copolymers were studied by nuclear magnetic resonance (NMR) spectroscopy,themogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The amphiphilicPFS-b-PAAC copolymers were cast into porous membranes by phase inversion in aqueous media. Thesurface and cross-sectional morphology of the PFS-b-PAAC membranes were studied by scanning electronmicroscopy (SEM). Membranes with well-defined pores of sizes in the micrometer range were obtainedas a result of inverse micelle formation. The pH of the aqueous media for phase inversion and the PAACcontent in the PFS-b-PAAC copolymers could be used to adjust the pore size of the membranes.
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