Metal-organic framework threaded with aminated polymer formed in situ for fast and reversible ion exchange

Liang Gao; Chi-Ying Vanessa Li; Kwong-Yu Chan; Zhe-Ning Chen

doi:10.1021/ja501958u

Metal-organic framework threaded with aminated polymer formed in situ for fast and reversible ion exchange

J Am Chem Soc. 2014 May 21;136(20):7209-12. doi: 10.1021/ja501958u. Epub 2014 May 13.

Authors

Liang Gao¹, Chi-Ying Vanessa Li, Kwong-Yu Chan, Zhe-Ning Chen

Affiliation

¹ Department of Chemistry, The University of Hong Kong , Pokfulam Road, Pokfulam, Hong Kong.

PMID: 24802277
DOI: 10.1021/ja501958u

Abstract

A porous metal-organic framework composite with flexible anion-exchange polymers threaded within the host cavity demonstrates very fast and reversible ion-exchange activity. Polyvinyl benzyl trimethylammonium hydroxide (PVBTAH) caged in ZIF-8 is synthesized in steps of chloro-monomer impregnation, in situ polymerization, amination, and alkaline ion exchange. The synthesized non-cross-linked PVBTAH∼ZIF-8 material exhibits superior ion-exchange kinetics compared to conventional ion-exchange resins.