Polymerisate aus ungesättigten Sacchariden und deren Derivaten sowie deren Copolymerisate mit ethylenisch ungesättigten Verbindungen und Verfahren zu ihrer Herstellung

摘要

The present invention concerns polymers of unsaturated saccharides and their derivatives which contain a double bond in the ring (endo-cyclic) or on the ring (exo-cyclic). It further concerns copolymers having ethylenically unsaturated compounds. The unsaturated saccharides are ethylenically unsaturated monosaccharides, disaccharides or oligosaccharides which contain a double bond in the ring (endo-cyclic) or on the ring (exo-cyclic), chemically protected or unprotected, enzymatically or chemically modified unsaturated mono, di or oligosaccharides or mixtures of said compounds. The ethylenically unsaturated compounds are selected from the group containing: (a) monoethylenically unsaturated C3 - C10 carboxylic acids and their alkali metal, alkaline earth metal or ammonium salts; (b) monoethylenically unsaturated C3 - C12 carboxylic acid esters; (c) acrylic or methacrylic acid dialkylaminoalkyl esters with a total of up to 30 carbon atoms in the dialkylaminoalkyl residue and which may be present in the N-quaternary or salt form; (d) acrylic acid amides, methacrylic acid amide, N-(dialkyl)-acrylic or methacrylic acid amide; (e) N-vinylimidazoles which may be substituted on the heterocyclic ring by up to three C1 - C12 alkyl residues and may be present in the N-quaternary or salt form; (f) five to eight-member N-vinyllactams which may be substituted on the ring by up to three C1 - C12 alkyl residues; (g) maleic acid anhydride, maleic acid dialkyl ester which may be present with a total of up to two carbon atoms in the alkyl residue; (h) styrene which may be substituted on the aromatic ring by up to two C1-C3 alkyl residues; (i) acrylnitrile, methacrylnitrile; and (j) N-vinylpyridines which may be substituted on the heterocyclic ring by up to four C1- C12 alkyl residues and may be present in the N-quaternary or salt form.