TY - JOUR
T1 - Formation of ordered macroporous films from fluorinated polyimide by water droplets templating
AU - Wang, Lihua
AU - Tian, Ye
AU - Ding, Huaiyu
AU - Liu, Biqian
PY - 2007/3
Y1 - 2007/3
N2 - Preparation of honeycomb-patterned films from one of soluble fluorinated polyimides in a humid atmosphere was reported in this paper. This polyimide was synthesized from 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) and 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane (BDAF) by two-steps method, which has excellent solubility both in strong bipolar solvents or in common low boiling-point solvents. The glass transition temperature of 6FDA-BDAF polyimide was determined by DSC and as 238 °C. Thermogravimetric analysis indicated that soluble fluoro-polyimide has good thermal stability with maximum thermal decomposition temperature of 545 °C in nitrogen atmosphere. The honeycomb-patterned films were obtained by casting a drop of polymer solution on a solid substrate in a humid atmosphere. Some influence factors, such as the solution concentration, the type of the solvent and the humidity, were also tested.
AB - Preparation of honeycomb-patterned films from one of soluble fluorinated polyimides in a humid atmosphere was reported in this paper. This polyimide was synthesized from 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) and 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane (BDAF) by two-steps method, which has excellent solubility both in strong bipolar solvents or in common low boiling-point solvents. The glass transition temperature of 6FDA-BDAF polyimide was determined by DSC and as 238 °C. Thermogravimetric analysis indicated that soluble fluoro-polyimide has good thermal stability with maximum thermal decomposition temperature of 545 °C in nitrogen atmosphere. The honeycomb-patterned films were obtained by casting a drop of polymer solution on a solid substrate in a humid atmosphere. Some influence factors, such as the solution concentration, the type of the solvent and the humidity, were also tested.
KW - Fluorinated polyimide
KW - Highly humid atmosphere
KW - Honeycomb pattern
UR - http://www.scopus.com/inward/record.url?scp=33847021405&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2006.12.002
DO - 10.1016/j.eurpolymj.2006.12.002
M3 - Article
AN - SCOPUS:33847021405
SN - 0014-3057
VL - 43
SP - 862
EP - 869
JO - European Polymer Journal
JF - European Polymer Journal
IS - 3
ER -