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Water-Soluble Blue Fluorescence-Emitting Hyperbranched Polysiloxanes Simultaneously Containing Hydroxyl and Primary
Song Niu1,2, Hongxia Yan1,2, Zhengyan Chen1,2
1Key Laboratory of Polymer Science and Technology, Shaanxi Province, School of Science, Northwestern Polytechnical University, Xi'an, 710129, China.
Macromolecular Rapid Communications
|November 3, 2015
Summary
Novel water-soluble hyperbranched polysiloxanes (WHPSs) with hydroxyl and amine groups were synthesized. These WHPSs exhibit bright blue fluorescence, with intensity increasing in aqueous solutions and after hydrolysis, offering versatile fluorescent material applications.
Area of Science:
- Polymer Chemistry
- Materials Science
- Nanotechnology
Background:
- Hyperbranched polymers offer unique properties due to their complex architecture.
- Developing water-soluble fluorescent materials is crucial for various applications.
- Polysiloxanes are versatile materials with tunable properties.
Purpose of the Study:
- To synthesize novel water-soluble hyperbranched polysiloxanes (WHPSs) containing both hydroxyl and primary amine groups.
- To investigate the photoluminescent properties of the synthesized WHPSs.
- To establish an efficient and controllable method for fabricating new fluorescent materials.
Main Methods:
- Melt polycondensation via transesterification of (3-aminopropyl)triethoxysilane and dihydric alcohols.
- One-step synthesis under catalyst-free conditions.
- Characterization of polymer structure and photoluminescence properties.
Main Results:
- Successfully synthesized water-soluble hyperbranched polysiloxanes (WHPSs) with hydroxyl and primary amine groups.
- WHPSs exhibit bright blue fluorescence in the solid state under UV irradiation.
- Photoluminescence intensity in aqueous solutions increases with concentration and is enhanced after hydrolysis.
Conclusions:
- An efficient, catalyst-free, one-step method for preparing novel WHPSs was developed.
- The synthesized WHPSs demonstrate significant potential as fluorescent materials.
- The tunable fluorescence properties make WHPSs suitable for diverse applications.
