| 摘要 |
<p>A superabsorbent polysaccharide derivative is obtained by oxidation of the polysaccharide to the extent that the derivative contains 0.2-3.0 carboxyl group per monosaccharide unit and cross-linking the oxidised polysaccharide with 0.001-0.2 equivalent of cross-linking agent per monosaccharide unit. The polysaccharide may also be cross-linked prior to oxidation.</p> |
