The invention relates to a polymer comprising a central structure to which n branches are covalently attached, wherein n is an integer from 1 to 50, wherein the branches comprise polyacrylamide moieties, wherein the theoretical number average molecular weight of the polymer is at least 1 00,000g/mol. This polymer is especially suitable for use in enhanced oil recovery.
本发明涉及一种
聚合物,该
聚合物由中心结构组成,中心结构上共价连接有 n 个分支,其中 n 为 1 至 50 的整数,分支包括聚
丙烯酰胺分子,
聚合物的理论平均分子量至少为 1 00 000g/mol。这种
聚合物尤其适用于提高石油采收率。