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Fluorescence-Tuned Polyhedral Oligomeric Silsesquioxane-Based Porous Polymers
Dengxu Wang1,2, Shengyu Feng3,4, Hongzhi Liu5
1National Engineering Technology Research Center for Colloidal Materials, Shandong University, Jinan, P.R. China. dxwang@sdu.edu.cn.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 18, 2016
Summary
New hybrid porous polymers (HPPs) based on polyhedral oligomeric silsesquioxane (POSS) exhibit tunable fluorescence. Reaction conditions control fluorescence intensity, offering insights for designing advanced fluorescent materials.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Polyhedral oligomeric silsesquioxanes (POSS) are versatile building blocks for advanced materials.
- Hybrid porous polymers offer unique properties for various applications.
- Controlling fluorescence in porous materials is crucial for sensing and optoelectronic devices.
Purpose of the Study:
- To synthesize and characterize novel POSS-based fluorescent hybrid porous polymers (HPPs).
- To investigate the effect of reaction conditions on the fluorescence properties of HPPs.
- To explore the potential applications of these materials in CO2 capture and explosive detection.
Main Methods:
- Heck reaction between octavinylsilsesquioxane and brominated fluorene or pyrene derivatives.
- Systematic variation of reaction conditions to tune polymer properties.
- Characterization of porosity and fluorescence spectroscopy.
Main Results:
- Two series of HPPs (HPP-1 and HPP-2) were successfully synthesized.
- Tunable fluorescence was achieved by altering reaction conditions, attributed to quenching effects.
- HPP-1c demonstrated moderate CO2 uptake and fluorescence quenching by nitroaromatic explosives.
Conclusions:
- Reaction conditions significantly influence the fluorescence of POSS-based HPPs.
- These materials show promise for CO2 capture and selective explosive sensing.
- Findings provide guidance for designing porous polymers with controllable fluorescence and porosity.
