Hybrid composite of metal-organic framework/smart polymer for gasdetection

Gasochromic polymers hybridized with metal-organic frameworks (MOFs) are novel classes of smartmaterials that often exhibit reversible color changes in the presence of gas. MOFs with high porosityexhibit notable gas absorption capacity and the ability to encapsulate dyes. This study aims to preparea gasochromic MOFs/polymer hybrid by physical incorporating MOF and oxazolidine intopoly(methyl methacrylate) matrix. In the presence of basic vapor, the hybridized structure containingoxazolidine exhibits a distinct color change due to the conversion of the structural isomer.Furthermore, the reversible response was delayed by gas absorption induced by the porous structureof the MOFs. XRD spectroscopy was used to evaluate the synthesis of MOFs. In addition, the samplesshowed coloration upon induction of basic vapors, confirming their outstanding gas absorption anddetection potential.

Keywords:

Smart polymers , MOF/polymer hybride , Oxazolidine , Gasochromism , Gas detection.