Kausar Fahmeeda, Zhao Zihao, Yang Tianjia, Hou Wubeiwen, Li Yuxuan, Zhang Yongming, Yuan Wang Zhang
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, No. 800 Dongchuan Rd., Minhang, Shanghai, 200240, China.
Macromol Rapid Commun. 2021 Jun;42(11):e2100036. doi: 10.1002/marc.202100036. Epub 2021 Apr 14.
Nonaromatic photoluminescent polymers have attracted great attention due to their intriguing photophysical properties and promising implications in optoelectronic and biological areas. The luminescence from these nonconventional luminophores can be well rationalized by the clustering-triggered emission mechanism. Sulfur, although as an n-electron-rich element with big radius, is not been widely utilized in construction of nonconventional luminophores despite of its potential competitiveness in nonaromatic photoluminescent polymers. Herein, the "click" type Michael polyaddition is utilized to construct sulfur-bearing nonconventional luminophores, and two sulfur enriched nonaromatic poly(thioether sulfone)s (PES) are obtained, which demonstrate fluorescence-phosphorescence dual emission. More investigations concerning the monomer of bis(vinylsulfonyl)methane are further proceeded to support acquired results. Finally, the application of explosive detection by the prepared PES is also conducted.
非芳香族光致发光聚合物因其有趣的光物理性质以及在光电和生物领域的潜在应用前景而备受关注。这些非常规发光体的发光可以通过聚集诱导发光机制得到很好的解释。硫虽然是一种半径较大的富n电子元素，但尽管其在非芳香族光致发光聚合物中具有潜在的竞争力，却未被广泛用于构建非常规发光体。在此，利用“点击”型迈克尔加成聚合反应构建含硫非常规发光体，得到了两种富含硫的非芳香族聚（硫醚砜）（PES），它们表现出荧光-磷光双重发射。进一步对双（乙烯基磺酰基）甲烷单体进行了更多研究以支持所得结果。最后，还进行了所制备的PES用于爆炸物检测的应用研究。
