Porous polyimide films obtained by using lithium chloride as pore-forming agent

被引：26
作者：
Chisca, Stefan [1 ]
Sava, Ion [1 ]
Bruma, Maria [1 ]
机构：
[1] Petru Poni Inst Macromol Chem, Iasi 700487, Romania
来源：
POLYMER INTERNATIONAL | 2013年 / 62卷 / 11期
关键词：
polyimide; porous films; low dielectric constant; atomic force microscopy; POLYHEDRAL OLIGOMERIC SILSESQUIOXANE; WATER-SORPTION BEHAVIORS; THIN-FILMS; INTRINSIC MICROPOROSITY; ORGANIC FRAMEWORKS; COPOLYMER MICELLES; POLY(AMIC ACID)S; CARBON MATERIALS; POLYMERS; NANOCOMPOSITES;
D O I：
10.1002/pi.4460
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Porous polymer films have been obtained from polyimide based on benzophenonetetracarboxylic dianhydride and 4,4'-diamino-3,3'-dimethyl-diphenylmethane by incorporating lithium chloride (LiCl) in the poly(amidic acid) precursor and subsequently leaching out the maximum possible LiCl by water Soxhlet extraction for 6h. The resulting porous polyimide films were characterized with regard to their pore size, thermal stability and dielectric properties. The morphology of the porous polyimide films showed a uniform distribution and various pore sizes depending on the initial quantity of added pore-forming agent. (c) 2013 Society of Chemical Industry
引用
收藏
页码：1634 / 1643
页数：10
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