Polymer Bulletin

, Volume 68, Issue 8, pp 2131–2144 | Cite as

Star-branched cationic light-emitting dot with silsesquioxane core, synthesis, and light scattering studies

  • Yang Xiao
  • Khine Y. Mya
  • Beng H. Tan
  • Chao B. He
Original Paper
  • 155 Downloads

Abstract

Novel star-like hydrophobic (M) and hydrophilic (W) hybrid light-emitting dots were synthesized by grafting conjugated arms at eight vertexes of polyhedral oligomeric silsesquioxane (POSS) cage. The water-soluble cationic polymer W contains POSS as a core and two layers shell—an inner layer shell consists of the conjugated organic chain and a long chain of hydrophilic polymer as outer layer shell for solubilization in water. The 3D structure renders non-aggregation properties of W in solution as the wavelength for the absorption and luminescence spectra remains unchanged over different concentrations. The effects of ionic strength and pH on the properties of cationic polymer W were studied using UV, dynamic- and static-light scattering (DLS and SLS).

Keywords

Silsesquioxane Light-emitting Dot Cationic Water soluble Light scattering 

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Yang Xiao
    • 1
  • Khine Y. Mya
    • 1
  • Beng H. Tan
    • 1
  • Chao B. He
    • 1
    • 2
  1. 1.Institute of Materials Research and Engineering (IMRE) Agency for Science, Technology and Research (A*STAR)SingaporeSingapore
  2. 2.Department of Materials Science and EngineeringNational University of SingaporeSingaporeSingapore

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