Ring closure of carbon nanotubes

被引：334

作者：

Sano, M ^{[1
]}

Kamino, A ^{[1
]}

Okamura, J ^{[1
]}

Shinkai, S ^{[1
]}

机构：

[1] Chemotransfigurat Project JST, Fukuoka 8390861, Japan

来源：

SCIENCE | 2001年 / 293卷 / 5533期

关键词：

D O I：

10.1126/science.1061050

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Lightly etched single-waited carbon nanotubes are chemically reacted to form rings. The rings appear to be fully closed as opposed to open coils, as ring-opening reactions did not change the structure of the observed rings. The average diameter of the rings was 540 nanometers with a narrow size distribution. The nanotubes in solution were modeled as wormlike polymer chains, yielding a persistence length of 800 nanometers. Nanotubes shorter than this length behave stiffly and stay nearly straight in solution. However, nanotubes longer than the Kuhn segment length of 1600 nanometers undergo considerable thermal fluctuation, suggesting a greater flexibility of these materials than is generally assumed.

引用

页码：1299 / 1301

页数：3

共 24 条

[1] Ring formations from catalytically synthesized carbon nanotubes [J].