PPS-PEI

Polysulfides,any of a class of compounds,containing one or more clusters of sulfur that are connected by covalent bonds.Polyethyleneimine(PEI) had the best transfection effect.Polyethyleneimine(PEI)is an organic polymer with high charge density.Every two carbon atoms are separated,that is,the third atom is protonated amino nitrogen,which makes the polymer network function as an effective proton sponge at any pH value.

msds---PPS-PEI