Blue-emitting poly(1,1′-binaphthol butyl ether) nanospheres via the nonsolvent vapor method

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• 作者：Yuyi Zheng ; Junfeng Zheng ; Chunxiang Wu ; Xianhuo Shang ; Weibin Bai…
• 刊名：Polymer Bulletin
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：73
• 期：10
• 页码：2843-2854
• 全文大小：1,761 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Characterization and Evaluation Materials
  Soft Matter and Complex Fluids
  Physical Chemistry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1436-2449
• 卷排序：73

文摘

Under nonsolvent vapor atmospheres, poly(1,1′-binaphthol butyl ether) nanospheres can be self-assembled from various good solvent solutions. To obtain the optimized assembling parameters, the factors such as the solvents and the polymer concentrations, on the formation of polymeric nanospheres were investigated. The choice of good solvent and nonsolvent is an important factor. The well-ordered nanospheres with the sizes of hundreds nm can be easily obtained from the preparation combinations such as CH₂Cl₂/MeOH vapor, CHCl₃/MeOH vapor, CHCl₃/EtOH vapor, and THF/EtOH vapor. Moreover, the increasing polymer concentration leads to the increasing spherical agglomerations. The static water contact angles of the films with polymeric spheres were measured to be above 130°. With the excitation wavelength of 371 nm, the polymeric nanospheres showed the blue emission with the peak at 480 nm. The nonsolvent vapor method is a facile way to prepare polymeric nanospheres.KeywordsConjugated polymerSelf-assemblyNonsolvent vapor methodNanospheresPhotoluminescence