摘要
报导了一种新型气凝胶的准备方法。Ｎ－羟甲基丙烯酰胺和间苯二酚混合溶液采用辐射引发聚合，经加热交联、溶剂交换和超临界干燥，形成有机气凝胶。ＮＭＲ、ＩＲ和Ｒａｍａｎ光谱证实交联是通过酚醛缩合方式进行的，经透射电镜与ＢＥＴ比表面积测定表明，此有机气凝胶具有一般气凝胶的微观结构。
A new organic aerogel made from (N-hydroxymethyl) acrylamide and resorcinol was reported.The acidic solution of NA and resorcinol was irradiated by g-rays with 1200￣ 1800 Gy dose, then was heated to form a strong sol-gel.Above the critical condition of carbon dioxide extraction the solvent of the sol-gel was carried to form a new aerogel. NMR, IR and Raman spectra reveal that crosslinking is due to phenolic aldehyde condensation BET and TEM revcal that the foains have large special surface and micro-cell.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1996年第4期26-31,共6页
Polymer Materials Science & Engineering
