Polymer blends of PEI and polyethylene glycol (PEG) have been used to prepare carbon molecular sieves. PEI has been used as matrix in the fabrication of various composites:
- PEI/ BaTi4O9 composites,
- PEI/glass fiber composites,
- Nanocomposite PEI/TiO2-sulfonated polymer membranes,
- Nanoparticles coated PEI-polyurethane (SiO2/PEI-PU) nanofibrous composite membranes,
- Single walled nanotubes (SWNTs)/PEI nanocomposites.
