Polyamic Acid Nanofibers Produced by Needleless Electrospinning

被引：55

作者：

Jirsak, Oldrich ^{[1
]}

Sysel, Petr ^{[2
]}

Sanetrnik, Filip ^{[1
]}

Hruza, Jakub ^{[1
]}

Chaloupek, Jiri ^{[1
]}

机构：

[1] Tech Univ Liberec, Text Engn Fac, Nonwoven Dept, Liberec 46117, Czech Republic

[2] Inst Chem Technol, Dept Polymers, CR-16628 Prague 6, Czech Republic

来源：

JOURNAL OF NANOMATERIALS | 2010年 / 2010卷

关键词：

FIBERS;

D O I：

10.1155/2010/842831

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The polyimide precursor (polyamic acid) produced of 4, 4'-oxydiphthalic anhydride and 4, 4'-oxydianiline was electrospun using needleless electrospinning method. Nonwoven layers consisting of submicron fibers with diameters in the range about 143-470 nm on the polypropylene spunbond supporting web were produced. Filtration properties of these nanofiber layers on the highly permeable polypropylene support-namely filtration effectivity and pressure drop-were evaluated. Consequently, these polyamic acid fibers were heated to receive polyimide nanofibers. The imidization process has been studied using IR spectroscopy. Some comparisons with the chemically identical polyimide prepared as the film were made.

引用

页数：6

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