POLYMERIC SELF-ASSEMBLED MONOLAYERS .2. SYNTHESIS AND CHARACTERIZATION OF SELF-ASSEMBLED POLYDIACETYLENE MONOLAYERS AND MULTILAYERS

被引：121

作者：

KIM, TS

CROOKS, RM

TSEN, M

SUN, L

机构：

[1] TEXAS A&M UNIV,DEPT CHEM,COLLEGE STN,TX 77843

[2] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1995年 / 117卷 / 14期

关键词：

D O I：

10.1021/ja00119a010

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the synthesis and characterization of self-assembled mono- and multilayers of omega-functionalized diacetylenic thiols. We used the carboxylic acid-terminated alkanethiol diacetylene HS(CH2)(10)C=CC=C(CH2)(10)-COOH as a block for preparing multilayers. Individual layers are covalently bonded through a thioester linkage. These two orthogonal polymerization steps yield a highly structured three-dimensional, surface-confined polymer. The results of infrared external reflectance spectroscopy and ellipsometry clearly indicate layer-by-layer growth up to at least 6 layers. The multilayers can be polymerized by UV irradiation either after the deposition of each individual layer or after all layers are deposited. The appearance of bands attributable to C=C vibrational modes in resonance Raman spectra confirms polymerization. Transmission UV-vis spectroscopy indicates the films consist of the highly conjugated blue polydiacetylenic polymer, and that polymerization is complete within 5 min of initial irradiation.

引用

页码：3963 / 3967

页数：5

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