TentaGel® Microsphere NH2 Resin (20 um)

particle size: 20 µm monosized
capacity: 0.2 - 0.3 mmol/g

TentaGel® resins are grafted copolymers consisting of a low crosslinked polystyrene matrix on which polyethylene glycol (PEG or POE) is grafted. The PEG spacer is attached to the matrix via an ethyl ether group which increases stability towards acid treatment and minimizes PEG-leaching. As PEG is a "chameleon type" polymer with hydrophobic and hydrophilic properties, the graft copolymer shows modified physico chemical properties which are highly dominated by the PEG moiety (and no longer by the polystyrene matrix). These graft 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.

The micro spherical shape and the monosized character of this resin allow applications in automated sorters, for creating huge libraries, high speed synthesis etc.