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Post-polymerization functionalization of linear polyglycidol with diethyl vinylphosphonate
Jens Köhler1, Helmut Keul, Martin Möller
1Institute of Technical and Macromolecular Chemistry, RWTH Aachen University and DWI an der RWTH Aachen e.V., Pauwelsstr. 8, 52056 Aachen, Germany.
Researchers created new polyglycidols with phosphonic acid groups using a base-catalyzed Michael addition. This modification introduces pendant phosphonic acid groups onto the polyglycidol polymer backbone.
Area of Science:
- Polymer Chemistry
- Organic Synthesis
- Materials Science
Background:
- Polyglycidol is a versatile polymer with reactive hydroxyl groups.
- Phosphonic acid functional groups impart unique properties, such as metal chelation and flame retardancy.
Purpose of the Study:
- To synthesize novel polyglycidols functionalized with pendant phosphonic acid groups.
- To explore the Michael addition reaction for polymer modification.
Main Methods:
- Base-catalyzed Michael addition of polyglycidol's hydroxy methyl side groups to diethyl vinyl phosphonate.
- Hydrolysis of the resulting diethyl phosphonato ethyl side groups using bromotrimethylsilane.
Main Results:
- Successful synthesis of polyglycidols with pendant phosphonic acid groups.
- Characterization of the modified polyglycidol structure.
Conclusions:
- A new route to polyglycidols with phosphonic acid groups has been established.
- The functionalized polyglycidols offer potential applications in areas requiring acidic polymer functionalities.
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