申请人:Anquetil A. Patrick
公开号:US20070215839A1
公开(公告)日:2007-09-20
The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from π-π stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.
报道了基于噻吩的导电聚合物分子致动器的合成,展示了电触发的分子构象转变。致动被认为是分子水平上聚合物骨架的构象重排结果,而不仅仅是在电化学激活时离子在大块聚合物链中的插层。分子致动的结果来自于噻吩寡聚物的π-π堆积氧化,产生可逆的分子位移,导致惊人的材料特性,如电可控孔隙度和大应变。原位电化学数据支持活性分子构象变化的存在。单分子技术已被用于表征分子致动器。