SELF-ASSEMBLED MONOLAYERS OF PYRROLE-CONTAINING ALKANETHIOLS ON GOLD

被引：89
|
作者：
SAYRE, CN
COLLARD, DM
机构：
[1] GEORGIA INST TECHNOL,SCH CHEM & BIOCHEM,ATLANTA,GA 30332
[2] GEORGIA INST TECHNOL,POLYMER EDUC & RES CTR,ATLANTA,GA 30332
来源：
LANGMUIR | 1995年 / 11卷 / 01期
关键词：
D O I：
10.1021/la00001a051
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Electrooxidative polymerization of 3-ethylpyrrole on gold electrodes modified with spontaneously adsorbed monolayers (SAMs) of alkanethiols bearing 3-substituted pyrroles such as 3-(11-mercaptoundecyl)pyrrole, 4-(3-pyrrolyl)butyl 11-mercaptoundecanoate, and 11-mercaptoundecyl 3-pyrrolylacetate affords dense, robust, and extremely adhesive films of poly(3-ethylpyrrole). In the absence of monomer in contacting solution, the surface-confined monolayers are subject to irreversible electrooxidation. Scanning electron microscopy indicates that the presence of these monolayers enhances the morphological packing in films of poly(3-ethylpyrrole) compared to that of films deposited on unmodified electrodes. The conductivity of these films is enhanced as a consequence of this change in morphology.
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收藏
页码：302 / 306
页数：5
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