Gel permeation chromatography (GPC) results show that G-PMMA has a higher molecular weight and a wider polydispersity than those of homopolymerized PMMA.

• 凝胶渗透色谱分析表明：碳酸钙表面接枝的PMMA相对分子质量大于MMA水相均聚物，而且分子量分布较均聚物宽；