Polymers having molecular weight between 1,000 and 1,500,000 characterized in that they contain radicals of nicotinic acid bound to the macromolecular structure by covalent bonds that are gradually hydrolyzed in biological environment by setting free nicotinic acid and non-toxic polymer residues.
具有分子量在1,000至1,500,000之间的聚合物,其特征在于它们包含
烟酸基团,这些基团通过共价键结合到大分子结构上,并在
生物环境中逐渐
水解,释放出
烟酸和无毒聚合物残留物。