Synthesis and Study of Photo-Switchable Polymers Containing Tetraphenylethylene and Spiropyran Units

• Main Authors: Chang, He-Kai, 張賀凱
• Other Authors: 林宏洲
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/exxe9a

碩士 === 國立交通大學 === 材料科學與工程學系所 === 106 === A multi-stimuli responsive molecular-switch polymers was constructed by the spiropyran and different kind of tetraphenylethylene with based photochromic and aggregation-induced emission (AIE) property is fabricated successfully. Spiropyran moiety will turn into open form by exposure ultraviolet light or in acid condition, then back to close form in base condition. The Uv-Vis spectrum also changed during this process. In addition to AIE behaviors of different kind of tetraphenylethylene present by using water fractions of THF. The AIE properties and electron property also changed by the switching of Spiropyran moiety in polymers. This strategy to design polymers with light and PH response in each other, and AIE property overcomes the common problem of aggregation-caused quenching (ACQ) in usual high concentration state. The energy band gap change by isomerization of spiropyran moiety presernt different electronic characterization in the same polymer. It provides a new applications about device or solid film in future.