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RESEARCH PRODUCT
Synthesis of aldonamide siloxanes by hydrosilylation
Reimund StadlerVolker Von Braunmühlsubject
chemistry.chemical_classificationPolymers and PlasticsHydrosilylationOrganic Chemistrychemistry.chemical_elementChemical modificationPolymerCatalysischemistry.chemical_compoundchemistryTransition metalSiloxaneAldonic acidPolymer chemistryMaterials ChemistryOrganic chemistryPlatinumdescription
Abstract The synthesis of hydrophobic/hydrophilic hybrid polymers based on polydimethylsiloxanes (PDMS) and carbohydrate derivatives involving a hydrosilylation step is reported. Starting with poly(dimethyl- co -hydromethyl)siloxanes (PDMS- co -HMS), O -acetylated N -allylaldonamides of various sugars can be attached to the siloxane backbone using platinum catalysts. The characteristics of different transition metal complexes in the polymer-analogous formation of SiC bonds are investigated. A generalized reaction pathway applicable to several reducing carbohydrates is established to synthesize aldonamide siloxanes in a broad variety of molecular weight and composition. The products obtained, “sweet siloxanes”, are characterized by g.p.c., FT i.r. spectrometry and 13 C n.m.r. spectroscopy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 | Polymer |