Physical gels based on supramolecular gelators, including host-guest complexes and pseudorotaxanes

被引：60
作者：
Suzaki, Yuji [1 ]
Taira, Toshiaki [1 ]
Osakada, Kohtaro [1 ]
机构：
[1] Tokyo Inst Technol, Chem Resources Lab R1 3, Midori Ku, Yokohama, Kanagawa 2268503, Japan
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 04期
基金：
日本学术振兴会;
关键词：
ALPHA-CYCLODEXTRIN; REVERSIBLE FORMATION; HYDROGELS; POLYROTAXANE; ROTAXANES; POLYMERS; MICELLES; PD; DIALKYLAMMONIUM; CONSTRUCTION;
D O I：
10.1039/c0jm02219e
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This article reviews recent studies on the gels formed by host-guest complexes, rotaxane and pseudorotaxanes. Pseudorotaxanes of crown ethers and rotaxanes of cyclic viologens with organic axle molecules form organogels through bonding of the functional end groups of the axle component. Cyclodextrins and cucurbiturils form gels in organic media and in aqueous mineral acids, respectively. The host-guest complexes and the pseudorotaxane of these macrocyclic compounds form hydrogels. These physical gels can be changed to sols by heating or addition of competing guests. Precise control of the gelation was enabled by using these supramolecules as the hydrogelator. Amphiphilic N-alkylpyridiniums and alpha-cyclodextrin form the hydrogel composed of their pseudorotaxanes. The mechanism of the gelation is described.
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收藏
页码：930 / 938
页数：9
相关论文
共 115 条
[1]   Organogels as scaffolds for excitation energy transfer and light harvesting [J].
Ajayaghosh, Ayyappanpillai ;
Praveen, Vakayil K. ;
Vijayakumar, Chakkooth .
CHEMICAL SOCIETY REVIEWS, 2008, 37 (01) :109-122
[2]   Interlocked and intertwined structures and superstructures [J].
Amabilino, DB ;
Stoddart, JF .
CHEMICAL REVIEWS, 1995, 95 (08) :2725-2828
[3]   A liquid-crystalline bistable [2]Rotaxane [J].
Aprahamian, Ivan ;
Yasuda, Takuma ;
Ikeda, Taichi ;
Saha, Sourav ;
Dichtel, William R. ;
Isoda, Kyosuke ;
Kato, Takashi ;
Stoddart, J. Fraser .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (25) :4675-4679
[4]   Recent advances in the preparation of cyclodextrin-based polyrotaxanes and their applications to soft materials [J].
Araki, Jun ;
Ito, Kohzo .
SOFT MATTER, 2007, 3 (12) :1456-1473
[5]   DIALKYLAMMONIUM ION CROWN-ETHER COMPLEXES - THE FORERUNNERS OF A NEW FAMILY OF INTERLOCKED MOLECULES [J].
ASHTON, PR ;
CAMPBELL, PJ ;
CHRYSTAL, EJT ;
GLINK, PT ;
MENZER, S ;
PHILP, D ;
SPENCER, N ;
STODDART, JF ;
TASKER, PA ;
WILLIAMS, DJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (17) :1865-1869
[6]  
Balzani V, 2000, ANGEW CHEM INT EDIT, V39, P3348, DOI 10.1002/1521-3773(20001002)39:19<3348::AID-ANIE3348>3.0.CO
[7]  
2-X
[8]  
Balzani V., 2003, Molecular Devices and Machines, a Journey into the Nanoworld
[9]   Supramolecular gels 'in action' [J].
Banerjee, Supratim ;
Das, Rajat K. ;
Maitra, Uday .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (37) :6649-6687
[10]  
Barbara P.F., 2001, ACCOUNTS CHEM RES, V34, P409, DOI DOI 10.1021/AR0100881
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