Xutong Han, Ye Tian, Lihua Wang
Oct 1, 2007
Citations
0
Influential Citations
11
Citations
Journal
European Polymer Journal
Abstract
Abstract One of fluorinated polyimides was synthesized from 2,2′-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA) and 3,3′-dimethyl-4,4′-diaminodiphenylmethane (DMMDA) by two-steps method, which had good solubility and hydrophilicity. 6FDA-DMMDA polyimide was dissolved in chloroform (CHCl 3 ) and cast on a glass substrate in a humid atmosphere. It was found that 6FDA-DMMDA/CHCl 3 solution was easy to form ordered porous structure at high concentration, and the reason was discussed in detail. In addition, the influences of solution concentration, the atmosphere humidity, were also tested.