Synthesis of Dendritic Polyaniline Nanofibers by Using Soft Template of Sodium Alginate

被引：12

作者：

Bhowmick, Biplab ^{[1
]}

Bain, Mrinal Kanti ^{[1
]}

Maity, Dipanwita ^{[1
]}

Bera, Nirmal Kumar ^{[1
]}

Mondal, Dibyendu ^{[1
]}

Mollick, Md. Masud Rahaman ^{[1
]}

Maiti, Prabir Kumar ^{[2
]}

Chattopadhyay, Dipankar ^{[1
]}

机构：

[1] Univ Calcutta, Dept Polymer Sci & Technol, Kolkata 700009, India

[2] Univ Calcutta, Dept Chem Technol Ceram Engn, Kolkata 700009, India

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 123卷 / 03期

关键词：

soft template; alginate gel; PANI nanofibers; ramose structures; INTERFACIAL POLYMERIZATION; ELECTROCHEMICAL SYNTHESIS; ASSISTED SYNTHESIS; FACILE SYNTHESIS; NANOPARTICLES; ANILINE; DISPERSIONS; MORPHOLOGY; NANOWIRES; NANOTUBES;

D O I：

10.1002/app.34575

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Highly crystallized polyaniline (PANI) nanofibers were synthesized by oxidative polymerization of aniline in the presence of sodium alginate as a soft template in HCl and ammonium peroxydisulfate (APS) acting as an oxidizing agent. Sodium alginate, in presence of a protonic acid like HCl, formed hydrogen bonds with anilium ions or oligomers. The formed hydrogen bonds provide the driving force to form PANI nanofibers. The nanofibers were separated from the alginate gel by degelling with ammonium hydroxide and during degelling emeraldine salt was converted into emeraldine base form. The polymerized PANI was characterized using ultraviolet (UV)-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). UV and FTIR spectra showed that the presence of sodium alginate had no effect on the electronic state and backbone structures of the resulting PANI products. It was evident from the XRD analysis that the obtained PANI nanofibers exhibit higher crystalline order. SEM micrographs showed that PANI nanofibers were just like a mat of interwoven twisted nanofibers. After magnification of the SEM image, it was found that most of the nanofibers were interconnected to form ramose structures rather than isolated nanofibers. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 1630-1635, 2012

引用

页码：1630 / 1635

页数：6

共 79 条

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