Electroactive Polymers

电活性聚合物

• 批准号: 8813707
• 负责人: C. Michael Elliott
• 金额: $ 10万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-12-15 至 1991-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813707&HistoricalAwards=false
• 关键词: Electroactive; Polymers

The synthesis and properties of two classes of electroactive polymers will be carried out; in both cases the synthesis and processing represent chemistry and processing techniques that are somewhat novel. The first type of electroactive polymer, synthesized by the oxidative coupling of 2,5-diethynylthiophenes and containing thiophene rings connected by 1,3-diyne units, could be fabricated into a highly oriented film because of its rod-like structure and facile processability. This polymer should be conductive, possesses the structural features necessary for transformation into an intrinsically conductive material, and conversion thermally, chemically, or photochemically into unique structures that could exhibit a variety of electroacitve properties. The second class of polymer, containing a conjugated donor- acceptor unit designed to exhibit efficient second harmonic generation, can be synthesized by the polymerization of an ordered monomer assembly. This assembly is achieved by poling a non-racemic chiral monomer (ferroelectric monomer) ia a smectic C phase and then effecting the polymerization through radical or cationic initiation. The synthesis of these materials should ultimately allow the fabrication of various devices with improved electronic and computer speed and capacity.

介绍了两类电活性聚合物的合成及其性能；在这两种情况下，合成和加工都代表了一些新颖的化学和加工技术。第一类电活性聚合物是由2,5-二乙基噻吩和含有由1,3-二炔单元连接的噻吩环的氧化偶联合成的，由于其棒状结构和易于加工，可以制成高度定向的薄膜。这种聚合物应该是导电的，具有转化为内在导电材料所必需的结构特征，并且可以通过热、化学或光化学转化为能够表现出各种电活性的独特结构。第二类聚合物，包含一个共轭的供体-受体单元，设计成具有有效的二次谐波生成，可以通过有序的单体组装聚合合成。这种组装是通过将非外消旋手性单体（铁电单体）在近晶C相中极化，然后通过自由基或阳离子引发来影响聚合来实现的。这些材料的合成最终将允许制造各种具有改进的电子和计算机速度和容量的设备。