摘要
本文报道SAXS对聚N-羟甲基丙烯酰胺-间苯二酚气凝胶与相应液体凝胶的结构研究.结果表明有机气凝胶的胶粒子具有比较清晰的界面,散射结果与Porod模型能很好地相符,应用小角散射法所测的比表面积与BET法所测的结果相当一致,气凝胶和液体凝胶在结构上存在一定差别,这种差别反映了网络结构中高分子链段存在一定自由度.
Strural investigations of Poly-(N-hydroxymethyl)-acrylamide-resorcinol aerogel by SAXS are reported. The results illustrated that the edge of the aerogel particles is clear, which is according to the model of Porod. Special surface of the aerogel calculated with SAXS is almost same as that gotten from BET. The difference of structure between sol-gel and aerogel displays that the polymeric chains have some freedom in the network of the structure of both gels.
