Supramolecular polymer assembly in aqueous solution arising from cyclodextrin host–guest complexation

Abstract

SummaryThe employment of cyclodextrin host–guest complexation to construct supramolecular assemblies with an emphasis on polymer networks is reviewed. The main driving force for this supramolecular assembly is host–guest complexation between cyclodextrin hosts and guest groups either of which may be discrete molecular species or substituents on a polymer backbone. The effects of such complexation on properties at the molecular and macroscopic levels are discussed. It is shown that cyclodextrin complexation may be used to design functional polymer materials with tailorable properties, especially for photo-, pH-, thermo- and redox-responsiveness and self-healing.

Monosubstituted Cyclodextrins as Precursors for Further Use

“…[28] For a given CD, there are three monosubstituted, dozens of disubstituted, and more than one hundred trisubstituted isomers possible. [50][51][52][53][54] The number of known monosubstituted CD derivatives is enormous and their listing would exceed the scope of this review. The efforts spent on this work have paid off, and many selectively multiply substituted CDs have been prepared.…”

Preparation and properties of nanocomposites of β-cyclodextrin-functionalized polyacrylamide and its application for enhancing oil recovery

“…18 The special molecular structure of b-CD consists of a hydrophobic inner core and a hydrophilic outer shell, making it can selectively incorporate a plenty of hydrophobic molecules as the guest into its cavity to form host-guest inclusion complex. [19][20][21] Moreover, some research have indicated that the introduction of b-CD into copolymer backbone can exhibit remarkable salt-resistance and temperature-tolerance, 22,23 which ensure its can be applied to oil eld for EOR.…”

Study on the stabilization mechanism of crude oil emulsion with an amphiphilic polymer using the β-cyclodextrin inclusion method

“…24,25 Each CD molecule consists of a hydrophobic inner core and a hydrophilic outer shell, making it possible to include the hydrophobic moieties of the polymer and form inclusion complex. 26,27 Several host-guest polymer systems based on CD modied polymer for enhanced oil recovery were proposed in recent years. [28][29][30][31] Based on the hostguest interaction, CD modied acrylamide polymers can enhance the polymer-polymer association then increasing the viscosity of the system while CD monomers can inhibit the association.…”