Silicone Copolymers

 

Amphiphilic gradient and block copolymers represent an interesting class of materials due to their ability to self-assemble into different structures. The combination of hydrophobic polysiloxanes with hydrophilic polyethers results in amphiphilic structures that are promising due to their chemical stability and biocompatibility. These characteristics enable a wide range of surfactant applications in various industrial sectors e.g. for pharmaceutical purposes. Copolymerization of cyclic siloxanes with epoxides is a challenging task which we can encounter by usage of the double metal cyanide (DMC) catalyst. The implementation of different synthesis conditions allows controlled copolymerization of cyclosiloxanes and epoxides both to statistical as well as block copolymers that are inaccessible by other methods like common anionic polymerization techniques.