12 Jul 2022 --- A research team from the Shibaura Institute of Technology (SIT) has discovered a simple method to obtain versatile porous polymers by adding water to polyethylenimine (PEI). Despite its “huge potential”, PEI is held back by the fact that ethylenimine is a highly toxic substance. Because it is commercially unavailable, it is rather difficult to conduct experiments aimed at controlling the morphology of PEI. As a consequence, many new applications for PEI might be missed.
