Girard-Reydet Clement, Ortuso Roberto Diego, Tsemperouli Maria, Sugihara Kaori
Department of Physical Chemistry, University of Geneva , Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
J Phys Chem B. 2016 Apr 14;120(14):3511-5. doi: 10.1021/acs.jpcb.6b02229. Epub 2016 Apr 5.
Polydiacetylene (PDA) is a conductive polymer that has mechanochromism. When the polymer is exposed to mechanical stresses, change in temperature (thermochromism), pH (ionochromism), and so forth, the structural perturbation can be seen by the change in its color. Although it presents interesting electrical and optical properties, the relationship between these signals has rarely been investigated. We studied the correlation between the electrical conductivity and the absorption spectra of PDA. Upon UV irradiation, PDA absorption spectra presented a blue shift, which coincided with the decrease in the electrical conductivity.
聚二乙炔（PDA）是一种具有机械变色特性的导电聚合物。当该聚合物受到机械应力、温度变化（热致变色）、pH值变化（离子致变色）等影响时，其结构扰动可通过颜色变化观察到。尽管它具有有趣的电学和光学性质，但这些信号之间的关系却很少被研究。我们研究了PDA的电导率与吸收光谱之间的相关性。在紫外线照射下，PDA的吸收光谱出现蓝移，这与电导率的降低相吻合。
