End-grafted polysilane- An approach to single polymer science

被引:30
作者
Furukawa, K [1 ]
机构
[1] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
关键词
OCTOPUS SURFACE MICELLES; ATOMIC-FORCE MICROSCOPY; SUBSTRATE SURFACE; TRANSITION; SOLVENTS; CHAINS;
D O I
10.1021/ar020072q
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This Account describes our approach to single polymer science in which we use end-grafted polysilane. Single polymer science, by our definition, involves isolating and observing a single polymer chain and extracting its physical properties at the single molecule level. For this purpose, we developed the end-graft technique, which is a method for fixing a polymer terminus on a solid surface by forming a chemical bond between them. We applied this technique to polysilane, a semiconducting polymer with a one-dimensional silicon-catenated backbone. Our recent experimental achievements are reviewed, which include direct observations of polysilane single-molecular structures by atomic force microscopy, the formation of unique supramolecular structures, and the observation of temperature-and solvent- dependent UV absorption spectra that are characteristic of isolated polysilane chains end-grafted on a solid surface.
引用
收藏
页码:102 / 110
页数:9
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