“Downsizing of Block Polymer-Templated Nanopores to One Nanometer via Hyper-Cross-Linking of High χ–Low N Precursors” by Jeonghyeon Lee and Myungeun Seo was published in ACS Nano.
Porous polymers derived from block polymer precursors by selective removal of a minority block offers fascinating opportunities to pore size-controlled and surface-tailored porous materials, but the pore size has been limited in the mesoporous regime (2 – 50 nm). To downscale the pore size below the 2 nm boundary and access the microporous regime, Jeonghyeon introduced a new high-χ comonomer in the polymerization-induced microphase separation process and further reinforced the framework with hyper-cross-linking. Finally we were able to show that 1.1-nm pores can be templated by block polymer self-assembly. Check out more details in the following link: https://pubs.acs.org/doi/abs/10.1021/acsnano.1c02690.