凝胶渗透层析法(简称GPC)是测定高聚物分子量分布的新技术。用GPC测定高聚物聚合度分布具有快速、简便、重复性好等多种优点。自从Mcore的工作发表后,GPC法获得迅速发展。传统的沉淀分级法和溶解分级法测定高聚物的聚合度分布,要用上几天至半个多月的时间,而GPC法测定试样只要十几分钟到一个多小时,为工业生产快速测定聚合度分布及时指导生产提供了条件。在高分子研究等其他领域,它也起 Gel permeation chromatography (GPC) is a new technique for determining the molecular weight distribution of polymers. The determination of the degree of polymerization of the polymer by GPC has many advantages such as fastness, simplicity and repeatability. Since the publication of Mcore’s work, the GPC method has been rapidly developed. Traditional precipitation grading and dissolution grading method to determine the degree of polymerization of the polymer distribution, to use a few days to more than half a month, while the GPC method to determine the sample as long as ten minutes to more than one hour, for industrial production quickly Determination of the degree of polymerization distribution in time to guide the production of the conditions. It also plays a role in other fields such as polymer research