Cationic Twin Polymerization on Polar Surfaces

• Applicant: Professor Dr. Stefan Spange
• Subject Area: Preparatory and Physical Chemistry of Polymers
• Term: from 2010 to 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 175291972

In addition to the cationic twin polymerization on polar surfaces such as SiO2 or cellulose the second part of the project will focus on the base catalyzed twin polymerization of 2,2'-Spirobis[4H-1,3,2]-benzodioxasilin (1) and derivatives on carbon surfaces of graphite, graphene, carbon nanotubes, and amorphous carbon as well as metal particles. The twin polymerization of 1 catalyzed with bases like diazabicyclo[2.2.2]octane (DABCO) or 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) is conducted to coat graphit particles as well as to obtain new intercalation compounds for the integration of different carbon morphologies into carbon/carbon nanocomposites. An important goal is the synthesis of graphene/microporous glass-like carbon hybrid materials as electric conducting composites which can be applied as electrode materials in energy storage applications. In this context it is as well subject of investigation if heteroatom doped carbon is accessible via base catalyzed twin polymerization. For this aspect new twin monomers have to be synthesized and investigated.The prefunctionalization of metal surfaces like copper with secondary amines (e.g. pyrrolidine) should be used to extend the surface twin polymerization on metal surfaces and integrate them into carbon matrices.

• DFG Programme: Research Grants