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Versatile and efficient functionalisation of multiallylic dendronised polymers: can dense packing be reached?
Firmin Moingeon1, Jérôme Roeser, Patrick Masson
1Institut de Physique et Chimie des Matériaux de Strasbourg , UMR 7504 CNRS-ULP, Strasbourg Cedex 2, France.
Chemical Communications (Cambridge, England)
|April 5, 2008
Summary
Researchers modified a polymer surface using hydrosilylation, hydroboration, or thiol addition to introduce various functional groups. Bulky grafted groups are expected to cause surface congestion, impacting polymer properties.
Area of Science:
- Polymer Chemistry
- Materials Science
- Surface Science
Background:
- Dendronised polymers offer unique branched architectures with high functional group density.
- Controlling surface functionality is crucial for tailoring polymer properties and applications.
- Existing surface modification techniques may face challenges with highly branched polymer structures.
Purpose of the Study:
- To explore surface modification of multiallylic dendronised polymers.
- To introduce diverse functional moieties onto the polymer surface.
- To investigate the phenomenon of surface congestion with bulky grafted groups.
Main Methods:
- Surface modification via hydrosilylation reactions.
- Surface modification via hydroboration reactions.
- Surface modification via radical addition of thiols.
Main Results:
- Successful grafting of various functional moieties onto the dendronised polymer surface.
- Demonstration of different chemical pathways for surface functionalization.
- Observation and expectation of surface congestion when using sterically demanding grafted groups.
Conclusions:
- Multiallylic dendronised polymers can be effectively surface-modified using hydrosilylation, hydroboration, and thiol addition.
- The choice of functional group impacts the surface characteristics, with bulky groups leading to congestion.
- Understanding surface congestion is key for designing functional dendronised polymers with predictable properties.
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