A Direct Route to Cyclic Organic Nanostructures via Ring-Expansion Metathesis Polymerization of a Dendronized Macromonomer

被引：123

作者：

Boydston, Andrew J. ^{[2
]}

Holcombe, Thomas W. ^{[1
]}

Unruh, David A. ^{[1
]}

Frechet, Jean M. J. ^{[1
]}

Grubbs, Robert H. ^{[2
]}

机构：

[1] Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA

[2] CALTECH, Div Chem & Chem Engn, Arnold & Mabel Beckman Lab Chem Synth, Pasadena, CA 91125 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 15期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

ARCHITECTURE; MACROMOLECULES; VISUALIZATION; COPOLYMERS; INTERFACES; POLYMERS;

D O I：

10.1021/ja901658c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cyclic organic nanostructures were prepared via ring-expansion metathesis polymerization of a dendronized norbornene macromonomer. The strategy provides a direct, efficient route to nanoscale rings in a single operation. AFM imaging confirmed toroidal features having diameters of ca. 35-40 nm.

引用

页码：5388 / +

页数：3

共 25 条

[1] A modular approach toward functionalized three-dimensional macromolecules:: From synthetic concepts to practical applications [J].

Bosman, AW ;

Vestberg, R ;

Heumann, A ;

Fréchet, JMJ ;

Hawker, CJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (03) :715-728

[2] Cyclic ruthenium-alkylidene catalysts for ring-expansion metathesis polymerization [J].

Boydston, Andrew J. ;

Xia, Yan ;

Kornfield, Julia A. ;

Gorodetskaya, Irina A. ;

Grubbs, Robert H. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (38) :12775-12782

[3] Zwitterionic polymerization of lactide to cyclic poly(lactide) by using N-heterocyclic carbene organocatalysts [J].

Culkin, Darcy A. ;

Jeong, Wonhee ;

Csihony, Szilard ;

Gomez, Enrique D. ;

Balsara, Nitash R. ;

Hedrick, James L. ;

Waymouth, Robert M. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (15) :2627-2630

[4] The role of polymer architecture in strengthening polymer-polymer interfaces: A comparison of graft, block, and random copolymers containing hydrogen-bonding moieties [J].

Edgecombe, BD ;

Stein, JA ;

Frechet, JMJ ;

Xu, ZH ;

Kramer, EJ .

MACROMOLECULES, 1998, 31 (04) :1292-1304

[5] Efficient preparation of cyclic poly(methyl acrylate)-block-poly(styrene) by combination of atom transfer radical polymerization and click cyclization [J].

Eugene, Dawanne M. ;

Grayson, Scott M. .

MACROMOLECULES, 2008, 41 (14) :5082-5084

[6]

Guan ZB, 2002, CHEM-EUR J, V8, P3087

[7] Control of polymer topology through late-transition-metal catalysis [J].

Guan, ZB .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2003, 41 (22) :3680-3692

[8] The effect of macromolecular architecture in nanomaterials:: A comparison of site isolation in porphyrin core dendrimers and their isomeric linear analogues [J].

Harth, EM ;

Hecht, S ;

Helms, B ;

Malmstrom, EE ;

Fréchet, JMJ ;

Hawker, CJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (15) :3926-3938

[9] Organic spirocyclic initiators for the ring-expansion polymerization of β-lactones [J].

Jeong, Wonhee ;

Hedrick, James L. ;

Waymouth, Robert M. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (27) :8414-+

[10] Metal-catalyzed living radical polymerization [J].

Kamigaito, M ;

Ando, T ;

Sawamoto, M .

CHEMICAL REVIEWS, 2001, 101 (12) :3689-3745

← 1 2 3 →