Nanoporous materials were produced from self-assembled ultrahigh molecular weight polystyrene-<i>b</i>-poly(solketal methacrylate) (PS-PSM) block copolymers using mild selective deprotection conditions. Through the combination of a Cu(0)-mediated controlled radical polymerization and reversible addition-fragmentation chain transfer polymerization protocols, block copolymers with molecular weights &gt; 10<sup>6</sup> g/mol having moderate dispersities were produced. Solvent casting of the copolymers with varying compositions and molecular weights led to the formation of well-ordered periodic nanostructures with domain spacings as large as 290 nm as evaluated by SEM and ultra-small-angle x-ray scattering techniques. Rapid and selective acid-catalyzed deprotection of ketal groups in the PSM block provides a handle to control pore wall functionality producing nanoporous membranes with a polystyrene matrix and hydrophilic pores.

Nanoporous materials from ultrahigh molecular weight linear block copolymer precursors

253rd National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.