Molecular Entrapment of Polymers by Pyrogallol[4]arenes

Li Shao; Hanwen Zhang; Xiaoqing He; Bin Hua; Xiangquan Hu; Caixia Wan; Steven P Kelley; Jerry L Atwood

doi:10.1021/jacs.0c12685

Molecular Entrapment of Polymers by Pyrogallol[4]arenes

J Am Chem Soc. 2021 Jan 20;143(2):693-698. doi: 10.1021/jacs.0c12685. Epub 2021 Jan 6.

Authors

Li Shao¹, Hanwen Zhang², Xiaoqing He³, Bin Hua⁴, Xiangquan Hu¹, Caixia Wan², Steven P Kelley¹, Jerry L Atwood¹

Affiliations

¹ Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States.
² Department of Biomedical, Biological & Chemical Engineering, University of Missouri, Columbia, Missouri 65211, United States.
³ Electron Microscopy Core Facility, University of Missouri, Columbia, Missouri 65211, United States.
⁴ Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.

PMID: 33405912
DOI: 10.1021/jacs.0c12685

Abstract

Macromolecular recognition systems are difficult to construct because extremely high recognition ability is required to form a stable host-guest complex toward macromolecules. Herein, we report a novel host-guest recognition motif based on C-propylpyrogallol[4]arene (PgC₃) and a commercially available polymer, polyethylene glycol (PEG). The results show that PgC₃ can selectively entrap PEG with higher molecular weights to form bilayered host-guest complex structures. Interestingly, this host-guest recognition is strong enough that PgC₃ is able to adsorb PEG from an aqueous solution efficiently.

Publication types

Research Support, Non-U.S. Gov't