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A Heteroatom-Containing Functional Poly(Silylenevinylene): Synthesis, Anion Binding, and Sensing of Anion Extraction
Bhaskar Garg1,2, Tanuja Bisht3, Yong-Chien Ling4
1Department of Chemistry, IIT Roorkee, Roorkee, 247667, India.
Macromolecular Rapid Communications
|November 22, 2023
Summary
Researchers developed a new silicon copolymer for detecting organic anions. This functional polymer shows high selectivity for extracting chloride anions using a colorimetric and fluorescence method.
Area of Science:
- Organosilicon polymer chemistry
- Supramolecular chemistry
- Analytical chemistry
Background:
- Catalytic hydrosilylation is a key method for synthesizing functional organosilicon polymers.
- Organosilicon polymers have potential applications in sensing and separation technologies.
Purpose of the Study:
- To construct a novel functional silicon copolymer.
- To investigate the copolymer's ability to extract organic anions.
- To develop a colorimetric and fluorescence detection method for anion extraction.
Main Methods:
- Polyhydrosilylation reaction between a novel phenothiazine monomer and a calix[4]pyrrole macrocycle.
- Investigation of the copolymer as an extractant for tetrabutylammonium salts in a water-chloroform system.
- Development of a naked-eye colorimetric and fluorescence detection assay based on anion-directed hydrogen-bonding.
Main Results:
- A functional silicon copolymer with a molecular weight of 9609 g/mol and a PDI of 2.2 was successfully synthesized.
- The copolymer demonstrated effective extraction of organic anions under interfacial conditions.
- A selective and rapid colorimetric/fluorescence detection method for anion extraction was established.
- The copolymer showed high selectivity for chloride anion extraction.
Conclusions:
- The study presents a new functional silicon copolymer for anion extraction and sensing.
- The developed colorimetric and fluorescence method offers a convenient tool for screening anion extraction processes.
- This work expands the applications of poly(silylenevinylene)s and related silicon-based polymers.
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