SPECTROSCOPIC PROPERTIES OF LANGMUIR-BLODGETT-FILMS OF AMPHIPHILIC POLYSILANES

被引：10

作者：

SEKI, T ^{[1
]}

TAMAKI, T ^{[1
]}

UENO, K ^{[1
]}

TANAKA, Y ^{[1
]}

机构：

[1] DAIKIN IND LTD,SETTSU,OSAKA 566,JAPAN

来源：

THIN SOLID FILMS | 1994年 / 243卷 / 1-2期

关键词：

D O I：

10.1016/0040-6090(93)04129-G

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two novel polysilanes that bear an amphiphilic ammonium moiety in the side substituent are synthesize. The spreading behaviors of these polymers at the air-water interface, the LB deposition, and their spectroscopic properties are investigated. Utilizing the strong UV absorption of the Si-Si backbone attributed to the delocalized sigma electron, substantial knowledge on the conformation and orientation of the main chain is readily obtained by UV-visible absorption spectroscopic measurements. Compression of the polysilane monolayer at the air-water interface induces a blue shift of the sigma-sigma* band around 300 nm, which is reasonably attributed to the trans-gauche populational changes of the backbone. The Si-Si backbone aligns parallel to the dipping direction in the multilayered Langmuir-Blodgett films for both polysilanes.

引用

页码：625 / 629

页数：5

共 6 条

[1] PULSE-RADIOLYSIS STUDY ON ORGANOPOLYSILANE RADICAL-ANIONS [J].