A wide range of applications are based on microfluidic devices made of silicone rubbers such as polydimethylsiloxane (PDMS), including materials synthesis, separation and sorting, diagnostics and bioanalysis. The popularity of PDMS in academic laboratories is due to the simplicity of the fabrication and well-characterised properties of PDMS. However, PDMS is not compatible with strong organic solvents, which quickly swell silicone-based materials. To this end, microfluidic channels possessing chemical and solvent compatibility are desirable.