TentaGel® HL COOH

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. TentaGel® resins have high diffusion rates and excellent swelling in a wide range of solvents from e.g. toluene to water. TentaGel® amine acylated with succinic acid. This highloaded version of TentaGel® combines a significantly higher capacity with the advantages of TentaGel® resins. The spacer is in the range of MW 1500 - 2000 Da. The resin can be used for the immobilization of alcohols by esterification. Cleavage is usually effected by hydrolysis, hydrazinolysis or reduction with LiBH4