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Functions and Mechanical Properties of Novel Ionic Elastomers

新型离子弹性体的功能和机械性能

基本信息

批准号：
62850152
负责人：
KOHJIYA Shinzo
金额：
$ 3.78万
依托单位：
Kyoto Institute of Technology, Faculty of Engineering and Design
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

项目摘要

Two kinds of ionene-type elastomers, PTI and PTV, were prepared and their mechanical properties and a few special functions were investigated. PTI is an aliphatic ammonium salt, while PTV contains viologen units. In the synthesis of PTI, the Menschutkin reaction was carried out, and the reaction was influential to the physical properties of PTI. Therefore the kinetic study of the reaction was carried out, and the results were included in a paper which will be published in Makromolekulare Chemie. PTI was found to adhere to the human skin. Accordingly the adhesion property of PTI was evaluated, and found that the more is the ionic sites in PTI, the more excellent is the adhesion property. This result is reported in a paper submitted to Bulletin of the Chemical Society of Japan.The viologen units in PTV are responsible for the photoresponsiveness of PTV. Both photochromic and photomechanical properties were observed, and the effect of counter anions was recognized, i.e., PTV with chloride was more sensitive than that with bromide. PTV with chloride was photochromic without any additives, which might be due to the nucleophilicity difference between them. Stress relaxation of PTV film clearly displayed a photomechanical effect. This effect was already published in a short communication, and a full paper was submitted to Journal of Polymer Science: Part A. PTV was also sensitive to electric field. The application of electric field caused a color change of PTV film from colorless to blue.Together with an excellent tensile properties of PTI and PTV films, the observed adhesive, photochromic, photomechanical and electrochromic properties demonstrate that both PTI and PTV are promising materials for the future utilizations in various areas including electronics and photonics.

制备了两种离子型弹性体PTI和PTV，研究了它们的力学性能和一些特殊功能。PTI是一种脂肪族铵盐，而PTV含有紫素单位。在PTI的合成过程中，进行了Menschutkin反应，该反应对PTI的物理性质有影响。因此，对该反应进行了动力学研究，并将结果发表在《Makromolekulare Chemie》上。PTI被发现能粘附在人体皮肤上。由此对PTI的粘附性能进行了评价，发现PTI中离子位越多，其粘附性能越好。这一结果发表在一篇提交给日本化学学会公报的论文中。PTV中的紫素单位负责PTV的光响应性。观察了光致变色和光致变色性能，并确认了反阴离子的作用，即氯离子的PTV比溴离子的PTV更敏感。在不添加任何添加剂的情况下，含氯的PTV具有光致变色性，这可能是由于它们之间的亲核性差异所致。PTV薄膜的应力松弛表现出明显的光刻效应。这一效应已经发表在一篇简短的通讯中，并且一篇完整的论文已经提交给了Journal of Polymer Science: Part a . PTV对电场也很敏感。电场的作用使PTV薄膜由无色变为蓝色。结合PTI和PTV薄膜优异的拉伸性能，观察到的粘附性、光致变色、光电致变色和电致变色性能表明PTI和PTV是未来在包括电子和光子学在内的各个领域应用的有前途的材料。