Pyrene-attached new Schiff base polymer: ACQ to AIE conversion and its prospects.

Schiff base polymer (SBP) is a new research field and an excellent candidate for real-life applications such as photoresistors, fluorescent chemical sensing kits, electrochromic devices, flame-retarders, and electrochemical substances. The dye-containing SBP (DSBP) advances the material further. Herein, the quality of pyrene dye has been improved through its chemical attachment to polyethyleneimine by a facile Schiff base reaction.