Mechanically bonded macromolecules

被引：384

作者：

Fang, Lei ^{[1
]}

Olson, Mark A. ^{[1
]}

Benitez, Diego ^{[2
]}

Tkatchouk, Ekaterina ^{[2
]}

Goddard, William A., III ^{[2
]}

Stoddart, J. Fraser ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA

来源：

CHEMICAL SOCIETY REVIEWS | 2010年 / 39卷 / 01期

基金：

美国国家科学基金会;

关键词：

MOLECULAR MECCANO; DONOR; POLYROTAXANES; ACID; POLYCATENANES; PRETZELANES; DENDRIMERS; ROTAXANES;

D O I：

10.1039/b917901a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mechanically bonded macromolecules constitute a class of challenging synthetic targets in polymer science. The controllable intramolecular motions of mechanical bonds, in combination with the processability and useful physical and mechanical properties of macromolecules, ultimately ensure their potential for applications in materials science, nanotechnology and medicine. This tutorial review describes the syntheses and properties of a library of diverse mechanically bonded macromolecules, which covers (i) main-chain, side-chain, bridged, and pendant oligo/polycatenanes, (ii) main-chain oligo/polyrotaxanes, (iii) poly[c2]daisy chains, and finally (iv) mechanically interlocked dendrimers. A variety of highly efficient synthetic protocols-including template-directed assembly, step-growth polymerisation, quantitative conjugation, etc.-were employed in the construction of these mechanically interlocked architectures. Some of these structures, i. e., side-chain polycatenanes and poly[c2]daisy chains, undergo controllable molecular switching in a manner similar to their small molecular counterparts. The challenges posed by the syntheses of polycatenanes and polyrotaxanes with high molecular weights are contemplated.

引用

页码：17 / 29

页数：13

共 64 条

[61] Self-assembly of a polyrotaxane containing a cyclic ''bead'' in every structural unit in the solid state: Cucurbituril molecules threaded on a one-dimensional coordination polymer [J].