Synthesis and Self-Assembly Characteristics of Brush Block Copolymers in Complex Nonlinear Topology

第三年继续开发新型铁电数字存储系统和新型氧基共轭聚合物。之前已经成功地合成和表征了新型氧基共轭聚合物，并测量了不同薄膜厚度下的电阻存储行为。为了了解电活性侧链中氧原子的位置和数目与阻性记忆行为的关系，对电压-电流(I-V)测量进行了仔细的分析。通过分析，所有聚合物似乎都存在四阶段导电机制，并对新型聚合物的导电机理提出了新的理论。目前，对含氧聚合物的研究内容进行了综述，并正在向国际学术期刊提交。新型铁电数字存储聚合物的开发正在稳步推进。结果表明，铁电性的大小依赖于聚合物的全氟化电刷长度，为了研究化学结构与自发极化行为的关系，我们还合成了一些具有较大变化的全氟化电刷长度的附加聚合物。为了准备这一系统的几份手稿，已经获得了更多的测量和表征。目前，该系统的手稿正在准备出版。

The third year continued the development of novel ferroelectric digital memory system and novel polymers with oxygen-based conjugated moieties.The synthesis and characterization of novel polymers with oxygen-based conjugated moieties have been confirmed successful previously and the resistive memory behavior was measured in various thin film thicknesses. In order to comprehend the correlation between the position and number of oxygen atoms in the electroactive side chains to the resistive memory behavior, a careful analysis of the voltage-current (I-V) measurements was done. Through the analysis, a four stage conduction mechanism seemed to be present in all of the polymers and I have developed a new theory on the conduction mechanism for the novel polymers. Currently, the research contents of the oxygen containing polymers are summarized and in process of submission to international academic journals.The development of novel ferroelectric digital memory polymer has been steadily making progress. The results are showing that the magnitude of the ferroelectricity is dependent on the length of the perfluorinated brushes of the polymers and some additional polymers with larger variety of perfluorinated brush lengthes have been synthesized for the purpose of investigating the correlation of the chemical structure to the spontaneous polarization behavior. Additional measurements and characterization have been acquired to prepare several manuscripts for this system. Currently, the manuscript for this system is being prepared for publication.