Effect of processing conditions on the properties of high molecular weight conductive polyaniline fiber

Wang, Hsing‐Lin; Romero, R; Mattes, Benjamin R.; Zhu, Yuntian; Winokur, M. J.

doi:10.1002/(sici)1099-0488(20000101)38:1<194::aid-polb22>3.0.co;2-h

Cited by 76 publications

(42 citation statements)

References 19 publications

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“…We should emphasize here that the fiber spun under the conditions of C ¼ 0.72% and f ¼ 180 mm has a diameter of 4.6 mm. This is one or two orders of magnitude finer compared with as-spun polyaniline fibers, [7,[11][12][13] and belongs to the category of so called ''microfiber'' or ''microdenier fiber'' defined as the fibers that are 1 denier or finer [14] where 1 denier corresponds to the diameter of about 10 mm for the PEDOT/PSS fiber calculated using a density of 1.39 g Á cm À3 .…”

Section: Resultsmentioning

confidence: 99%

Spinning and Characterization of Conducting Microfibers

Okuzaki

Ishihara

2003

Macromol. Rapid Commun.

138

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Conducting microfibers of poly(3,4‐ethylenedioxythiophene) doped with poly(4‐styrene sulfonate), having a diameter ranging between 4.6 and 16 μm, were fabricated by a wet‐spinning technique. The as‐spun microfiber had no notable orientation of polymer chains with poor crystallinity, and electrical conductivity was in the order of 10−1 S · cm−1 regardless of the diameter. Young's modulus, tensile strength, and elongation at break for the resulting microfiber were 1.1 ± 0.3 GPa, 17.2 ± 5.1 MPa, and 4.3 ± 2.3%, respectively. SEM image of a PEDOT/PSS microfiber reported here.magnified imageSEM image of a PEDOT/PSS microfiber reported here.

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Section: Resultsmentioning

confidence: 99%

Spinning and Characterization of Conducting Microfibers

Okuzaki

Ishihara

2003

Macromol. Rapid Commun.

138

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“…It has been reported that the higher molecular weight polyaniline can be prepared at Ϫ45°C via oxidative polymerization. 9 A much higher temperature was necessary for the preparation of high molecular weight 2PA/AN (30/70) copolymer, possibly because of the much lower oxidative polymerization reactivity of 2PA compared with that of AN. One piece of evidence is that no homopolymer of 2PA could be obtained when 2PA polymerized under the same polymerization condition.…”

Section: Synthesis Of the Copolymers Of 2pa And Anmentioning

confidence: 99%

Oxidative copolymerization of 2-pyridylamine and aniline

Huang

et al. 2000

J. Polym. Sci. A Polym. Chem.

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“…This undesirable characteristic became even more pronounced at higher PANI concentration. It has been found that secondary amine gel-inhibitors can destroy inter-chain hydrogen bonding and can prevent concentrated PANI solutions from gelation [26,27]. In this study, small amounts of secondary amine piperidine (number of piperidine molecules per EB tetramer repeat unit was between 0.8 and 1.0) were used as a gel-inhibitor.…”

Section: Phase Behaviors Of Pani/diluent Systemmentioning

confidence: 99%

Microporous Membranes Based on Electro-Conducting Polymers

Tao

Wang

et al. 2011

International Journal of Polymeric Materials

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Microporous membranes were prepared from polyaniline-diluent systems by exploiting the thermally induced phase separation, using three polymer concentrations, two quenching temperatures, and different extraction conditions. Both binodal and spinodal curves of polyaniline-diluent systems were determined by differential scanning calorimetry. The membrane morphology was determined by scanning electron microscopy and optical microscopy. Phase separation may be carried out by nucleation and growth mechanism under the conditions used in this study. A closed cell structure was obtained for the PANI-concentrated samples. In contrast, an open structure composed of strings of small beads resulted for the PANI-dilute samples. It was also found that the membrane morphology varied with the extraction temperature and extractants. A great effect of coarsening, attributed to the extremely low molecular weight of PANI and mild quenching temperature, gave large pores in the final membrane structure.

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Effect of processing conditions on the properties of high molecular weight conductive polyaniline fiber

Cited by 76 publications

References 19 publications

Spinning and Characterization of Conducting Microfibers

Spinning and Characterization of Conducting Microfibers

Oxidative copolymerization of 2-pyridylamine and aniline

Microporous Membranes Based on Electro-Conducting Polymers

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