Hasegawa Joji, Kanamori Kazuyoshi, Nakanishi Kazuki, Hanada Teiichi, Yamago Shigeru
Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan.
Macromol Rapid Commun. 2009 Jun 17;30(12):986-90. doi: 10.1002/marc.200900066. Epub 2009 Apr 1.
Rigid crosslinked polyacrylamide monoliths with well-defined macropores have been successfully fabricated by organotellurium-mediated living radical polymerization (TERP) accompanied by spinodal decomposition. The TERP forms homogeneous networks derived from N,N-methylenebis(acrylamide) (BIS), in which spinodal decomposition is induced to form macropores. Macropore diameter can be controlled from submicrons to a few microns, and also the obtained networks contain mesopores in the macroporous skeletons, which are collapsed by evaporative drying. They are promising materials with hydrophilic polyacrylamide surfaces and have enough strength to preserve the macropores from the surface tension arising in the repetitive swelling and drying that may occur in many applications.
通过有机碲介导的活性自由基聚合（TERP）并伴随旋节线分解，成功制备出了具有明确大孔的刚性交联聚丙烯酰胺整体柱。TERP形成了由N，N-亚甲基双丙烯酰胺（BIS）衍生的均匀网络，其中诱导旋节线分解以形成大孔。大孔直径可从亚微米控制到几微米，并且所获得的网络在大孔骨架中包含中孔，这些中孔会因蒸发干燥而塌陷。它们是具有亲水性聚丙烯酰胺表面的有前景的材料，并且具有足够的强度以防止大孔因许多应用中可能发生的重复溶胀和干燥所产生的表面张力而受损。
