A Robust and Soluble Nanopolymer Based on Molecular Grid-based Nanomonomer

• Published in: 高分子科学：英文版 no. 1; pp. 87 - 97
• Main Author: Quan-you Feng Ye-long Han Meng-na Yu Bin Li Ying Wei 解令海 黄维
• Format: Journal Article
• Language: English
• Published: 2017
• ISSN: 0256-7679; 1439-6203

Shape persistent conformations reduce the complexity of polymer materials. Herein, we propose a concept on the nanopolymer that is a nanoscale polymer chain with the repeat units of nanomonomers. In this article, a soluble organic nanopolymer of wide bandgap semiconductors was synthesized by the Yamamoto polymerization of nanogrid monomer as the repeat units with the rectangle size of ~1.7 nm × 1.2 nm. The alkyl side chain substituent at 9-position of fluorenes guarantees the polygrid with excellent solubility. Tetrafluorenes in the conjugation-interrupted backbones of polygrid acts as the active light-emitting centers without obvious green band in the fluorescence spectra of the films after 10 h annealing at 180 ℃, indicating this nanopolymer exhibits excellent spectral stability. Such soluble nanopolymers will be the fifthgeneration of macromolecular materials with a potential character of overall performance improvement.