Coloration of Ethyleneamine-Diacrylate-Based Porous Polymer-Toluene Systems Induced by the Christiansen Effect: Color Control by the Molecular Design of the Polymer Networks.

ABSTRACT: The aza-Michael addition reaction of ethyleneamine, diethylenetriamine (DETA), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), or pentaethylenehexamine (PEHA) with poly-(ethylene glycol) diacrylate (PEGDA) in ethanol at 20 °C yielded the corresponding porous polymers. The surface morphology of the porous polymers was composed of connected particles or cocontinuous monolithic structure, which were induced by phase separation. The TETA- and TEPA-PEGDA porous polymers turned half transparent and colored in toluene through the Christiansen effect. The transmission peak top (λ_max) of the porous polymer-toluene system showed a blue shift with an increase in the observation temperature, and the complementary colors of the transmission peak were observed as the scattered lig

SUBMITTER: Naga N 

PROVIDER: S-EPMC12593111 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature