A Pillar[5]arene Conjugated Polymer for Removal of Low-Molecular-Weight Organic Acids, Amines, and Alcohols from Water
Zhuo Wang, Tao Chen, Guo Wang, Wei‐Bo Hu, Yahu A. Liu, Hui Yang, Ke Wen
Abstract
We have fabricated a pillar[5]arene-based conjugated polymer, pillar[4]arene[1]terephthalic acid-derivatized poly-p-phenylene pillar[4]arene[1]terephthamide (P[5]-PPTA), which demonstrated exceptional adsorption capability toward low-molecular-weight alkylamines, alcohols, and carboxylic acids in water. In addition, P[5]-PPTA could be thermally reactivated and reused at least five times without obvious decrease of adsorption capability. A mechanistic study indicated that the absorption results from the host–guest interaction between the pillar[5]arene rings in P[5]-PPTA and the low-molecular-weight short-chain alkyl derivatives.
Topics & Concepts
PillarAlkylPolymer chemistryAdsorptionConjugated systemChemistryPolymerTerephthalic acidOrganic chemistryPhenylenePolyesterEngineeringStructural engineeringSupramolecular Chemistry and ComplexesSupramolecular Self-Assembly in MaterialsLuminescence and Fluorescent Materials