Unravelling Competitive Interactions between Polymer Side Chains and End Groups with β-Cyclodextrin

被引：2

作者：

Ziegler, Katharina ^{[1
,2
]}

Post, Yorick ^{[1
,2
]}

Groeschel, Andre H. ^{[3
,4
]}

Ravoo, Bart Jan ^{[1
,2
]}

机构：

[1] Univ Munster, Organ Chem Inst, Corrensstr 40, D-48149 Munster, Germany

[2] Univ Munster, Ctr Soft Nanosci, Corrensstr 40, D-48149 Munster, Germany

[3] Univ Bayreuth, Bavarian Ctr Battery Technol BayBatt, Univ Str 30, D-95448 Bayreuth, Germany

[4] Univ Bayreuth, Bavarian Polymer Inst BPI, Univ Str 30, D-95448 Bayreuth, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2024年 / 45卷 / 14期

关键词：

host-guest chemistry; isothermal titration calorimetry; molecular photoswitches; polyacrylates; supramolecular interactions; INCLUSION; ARYLAZOPYRAZOLES; PHOTOSWITCHES;

D O I：

10.1002/marc.202400081

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This study investigates unexpected competitive host-guest interactions of beta-cyclodextrin (beta-CD), which can occur with polymers in aqueous solution, using the examples of the two polymers poly(oligo(ethylene glycol) methyl ether methacrylate) and poly(glycerol mono methacrylate). Systematic structural modifications of the polymer provide insight into the host-guest interaction with beta-CD and the competition between side chains and end groups such as hydrophobic end groups remaining from reversible addition fragmentation chain transfer polymerization or intentionally implemented molecular recognition units such as arylazopyrazole photoswitches. Competitive host-guest interactions in aqueous solution of beta-cyclodextrin with side chains and end groups of two hydrophilic polymers are investigated. Structural modification of the polymers, including the implementation of photoswitches, and detailed analysis by isothermal titration calorimetry provide insights into the balance of supramolecular interactions. image

引用

页数：7