文献类型：期刊文献

英文题名：Combinatorial synthesis of soluble conjugated polymeric nanoparticles and tunable multicolour fluorescence sensing

作者：Zhao, Peng[1];Dai, Yanan[1];Wu, Yusen[1];Wang, Lili[1];Huang, Binlei[1];Ding, Yun[1];Hu, Aiguo[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：8

期号：37

起止页码：5734

外文期刊名：POLYMER CHEMISTRY

收录：;EI(收录号：20174004224549);WOS:【SCI-EXPANDED(收录号:WOS:000411713500012)】；

基金：Dedicated to Prof. Ji-tao Wang on the occasion of his 100th birthday. The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (21674035) and the Shanghai Leading Academic Discipline Project (B502). AH thanks the "Eastern Scholar Professorship" support from Shanghai local government.

语种：英文

外文关键词：Fluorescence - Monomers - Quenching - Nanoparticles - Polymerization - Energy gap - Synthesis (chemical)

摘要：A combinatorial polymerization method has been exploited to prepare a library of soluble conjugated polymeric nanoparticles (SCPNs) through palladium catalyzed polycondensations in confined nanoreactors. The strategy of independent variation within two complementary families of simple and symmetrical monomers, A(x) and B-y (x > 2, y >= 2), plus post-polymerization modification with variant terminal groups greatly increases the number of polymers and improves the efficiency of polymer preparation. Fluorescence properties (band gap) of the SCPNs are easily tuned by selecting the monomer units (A or B) and the terminal (T) substituents through this "TABulated synthesis" method, providing fluorescent polymers that cover the whole visible spectrum, from blue to red. This library of SCPNs is further utilized for multicolor fluorescence sensing of explosives, showing a high Stern-Volmer quenching constant (K-sv). Meanwhile, the K-sv values of the SCPNs were mapped with the variation of the T, A, and B building blocks to predict the possible SCPN member with the optimal Ksv value (K-sv up to 1.2 x 10(5) M-1), showing the academic significance of this method. We believe that such a combinatorial "TAB" strategy provides a straightforward method to quickly synthesize libraries of polymeric nanoparticles, which will promote widespread studies on the functional materials in interdisciplinary fields.