화학공학소재연구정보센터
Polymer, Vol.39, No.8-9, 1617-1629, 1998
Synthesis of aldonamide siloxanes by hydrosilylation
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-KMS), 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 SI-C 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., FTi.r. spectrometry and C-13 n.m.r. spectroscopy.