TentaGel® H RAM

TentaGel®resins are grafted copolymers consisting of a low crosslinked polystyrene matrix on which polyethylene glycol (PEG or POE) is grafted via an ethyl ether group which increases stability towards acid treatment and minimizes PEG-leaching. The graft copolymer shows modified physicochemical properties which are highly dominated by the PEG moiety (and no longer by the polystyrene matrix) and has hydrophobic and hydrophilic properties. These copolymers are pressure stable and can be used in batch processes as well as under continuous flow conditions. The PEG spacer is in the range of MW 3000 Da. TentaGel®resins have high diffusion rates and excellent swelling in a wide range of solvents from e.g. toluene to water.These hybrid resins are random functionalized bifunctional TentaGel®resins for sequentional cleavage. These supports contain 10-20% noncleavable sites for the covalent attachment of ligands and 80-90% cleavable sites for the acid cleavage of the ligands.