Jump to main content
Jump to site search

Issue 22, 2016
Previous Article Next Article

Unanticipated bright blue fluorescence produced from novel hyperbranched polysiloxanes carrying unconjugated carbon–carbon double bonds and hydroxyl groups

Author affiliations

Abstract

One-pot polycondensation reaction of triethoxyvinylsilane (A-151) with excessive neopentyl glycol (NPG) is employed as an efficient and facile methodology for the synthesis of novel hyperbranched polysiloxanes contemporaneously bearing plenty of unconjugated carbon–carbon double bonds and hydroxyl groups (HPUHs). Interestingly, the obtained HPUHs obviously without containing conventional chromophores exhibit conspicuous ultraviolet absorbency and bright blue photoluminescence when irradiated by a UV lamp with 365 nm wavelength. The excitation and emission intensities of the as-prepared polymers progressively grow along with raising their molecular weights and concentrations, and even the brightest blue glow in the solid state is observed, suggesting the emission intensity is molecular-weight and concentration-dependent. The preliminary investigation indicates that both the carbon–carbon double bond and the hydroxyl group are very important in the formation of blue-luminescent species. Thus, this work opens a new route to design new light-emitting materials.

Graphical abstract: Unanticipated bright blue fluorescence produced from novel hyperbranched polysiloxanes carrying unconjugated carbon–carbon double bonds and hydroxyl groups

Back to tab navigation

Supplementary files

Article information


Submitted
13 Apr 2016
Accepted
02 May 2016
First published
03 May 2016

Polym. Chem., 2016,7, 3747-3755
Article type
Paper

Unanticipated bright blue fluorescence produced from novel hyperbranched polysiloxanes carrying unconjugated carbon–carbon double bonds and hydroxyl groups

S. Niu, H. Yan, Z. Chen, S. Li, P. Xu and X. Zhi, Polym. Chem., 2016, 7, 3747
DOI: 10.1039/C6PY00654J

Social activity

Search articles by author

Spotlight

Advertisements