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Control of the layer number of organic thin films in the electrochemical polymerization of triazine dithiols and its properties

三嗪二硫醇电化学聚合中有机薄膜层数的控制及其性能

基本信息

批准号：
14205134
负责人：
MORI Kunio
金额：
$ 34.28万
依托单位：
Iwate University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14205134/
关键词：
Electrochemical polymerization triazine dithiols Amorphous organic films Crystalline organic films Layer number control Ambipopar organic films Non-linear optical devices Electric devices 末端不飽和基電流効率反応速度定数層数成長速度定数三次元化率 X型膜 2

项目摘要

The formation conditions of thin films in the electrochemical polymerization of 6-substituted groups-1,3,5-triazine-2,4-dithiol mono sodium salts (RTD) on metals and the structure of thin films were investigated. From the relation between RTD concentration and current density, amorphous organic thin films are formed in the conditions as a rate-determination step is a diffusion process and crystalline films are done in the conditions as a rate-determination step is a one-electron transfer process. Morphology structure of the organic thin films depends upon the chemical structure of substituted groups in RTD. Amorphous organic thin films are formed in the substituted groups of short alkyl chains, and crystalline films in the groups of long alkyl chains. Furthermore, amorphous films are formed when alkyl chains is one, and crystalline films when alkyl chains two. The number of layer can be calculated from current efficiency and polymerization time. RTD containing unsaturated groups in the substituted groups gave three dimensional organic thin films insoluble in organic solvents. Formation rate in the electrochemical polymerization of dioctylamino-1,3,5-triazine-2,4-dithiols increased according to a linear low, suggesting the rate-determining step to be electron transfer process. This organic film is similar to a Y-type LB film but triazine dithiols containing unsaturated groups in the substituted group give a X-type LB film. This films are effective one for producing condensers and non-linear optical devices. Crystal structure analysis for some RTD indicate that polymer films turn on an electric current over a certain potential as be separated in the parts of electron donor and acceptor. The properties will be developed as electric devices such as organic semiconductors, condensers and resistors.

研究了6取代基-1,3,5-三嗪-2,4-二硫醇单钠盐（RTD）在金属表面电化学聚合的薄膜形成条件和薄膜结构。从RTD浓度与电流密度的关系来看，在速率决定步骤为扩散过程的条件下形成非晶有机薄膜，在速率决定步骤为单电子转移过程的条件下形成结晶薄膜。有机薄膜的形态结构取决于RTD中取代基的化学结构。在短烷基链的取代基上形成非晶有机薄膜，在长烷基链的取代基上形成结晶薄膜。此外，当烷基链为一条时形成非晶膜，当烷基链为两条时形成结晶膜。层数可由电流效率和聚合时间计算。在取代基中含有不饱和基团的RTD得到了不溶于有机溶剂的三维有机薄膜。二辛基胺-1,3,5-三嗪-2,4-二硫醇的电化学聚合生成速率呈线性低增长，表明其速率决定步骤为电子转移过程。该有机膜类似于y型LB膜，但在取代基中含有不饱和基团的三嗪二硫醇形成x型LB膜。这种薄膜是生产聚光器和非线性光学器件的有效薄膜。对某些RTD的晶体结构分析表明，聚合物薄膜在电子供体和电子受体部分分离时，在一定电位上打开电流。这些特性将被开发成有机半导体、电容器和电阻器等电子器件。