聚合物光子晶体对己二胺的响应检测.

Hexamethylenediamine (HMDA), as an important chemical intermediate, plays a crucial role in the production of nylon-66 and finds widespread applications in various fields such as synthetic fibers, textile manufacturing, fertilizers, pharmaceuticals, electronics, and polymer materials. Addressing the efficient detection of HMDA pollution in water, this study successfully prepared a photonic crystal sensor sensitive to HMDA by altering the ratio of functional monomers to crosslinker. The sensor, referred to as inverse opal polymeric photonic crystals (IOPPCs), exhibited optimal responsive performance when the functional monomer was acrylic acid (AA) and the ratio of functional monomer to crosslinker was 5:0.5. Research results indicate that as the HMDA concentration increased from 1 mM to 10 mM, the redshift of the reflection of IOPPCs increased from 3 nm to 140 nm, accompanied by a color change from green to red, enabling visual semi-quantitative detection. Additionally, the prepared IOPPCs demonstrated good anti-interference property and reusability. [ABSTRACT FROM AUTHOR]