BETA-W7 MCT - NEW WAYS IN SURFACE MODIFICATION

BETA W7 MCT is the first reactive cyclodextrin derivative manufactured on an industrial scale. It has a monochlorotriazinyl group as a react ive anchor well known from many reactive dyes. This derivative is able to form stable covalent bonds with nucleophilic groups and can be eas ily prepared in water in an effective one pot synthesis from cyanuric chloride and beta-cyclodextrin in a yield of approx. 90% based on the triazinyl group. The optimised degree of substitution of DS = 0.4 per anhydroglucose ensures a good complexation capacity even when this der ivative is fixed to surfaces like textiles. This cyclodextrin derivati ve containing 2-3 reactive groups in the ring can be used as building block for new CD derivatives, as a crosslinking agent or as an excelle nt material for surface modification.