Anisotropic carbon nanotube films fabricated from a lyotropic liquid-crystalline polymer

Kunihiko Okano; Ikuyo Noguchi; Takashi Yamashita

doi:10.1021/ma101004s

Anisotropic carbon nanotube films fabricated from a lyotropic liquid-crystalline polymer

Kunihiko Okano, Ikuyo Noguchi, Takashi Yamashita

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The use of a sulfonated polyaramide, poly-(p-sulfophenylene- terephthalamide) (PPSA) was proposed for the preparation of ordered SWCNT films. 20 mg of PPSA and 5 mg of SWCNTs were mixed in 1mL of water and were ultrasonically agitated for 5 h To obtain homogeneously aligned films and evaluate their optical properties. A small portion of the resultant solution was cast on a glass substrate, and a film was obtained by a bar coater method. The prepared films appeared transparent and the average transmittance of 100 nm thickness of transmittance of 100 nm thickness of SWCNT/PPSA films over the visible region was close to 100%. Spectra were recorded at several randomly chosen locations in the sample, and other samples were measured to confirm reproducibility. The result assume that a SWCNT formed by high anisotropic π-conjugation shows a larger value of the order parameter than that of the liquid crystalline (LC) template.

Original language	English
Pages (from-to)	5496-5499
Number of pages	4
Journal	Macromolecules
Volume	43
Issue number	13
DOIs	https://doi.org/10.1021/ma101004s
Publication status	Published - 2010 Jul 13

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma101004s

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abstract = "The use of a sulfonated polyaramide, poly-(p-sulfophenylene- terephthalamide) (PPSA) was proposed for the preparation of ordered SWCNT films. 20 mg of PPSA and 5 mg of SWCNTs were mixed in 1mL of water and were ultrasonically agitated for 5 h To obtain homogeneously aligned films and evaluate their optical properties. A small portion of the resultant solution was cast on a glass substrate, and a film was obtained by a bar coater method. The prepared films appeared transparent and the average transmittance of 100 nm thickness of transmittance of 100 nm thickness of SWCNT/PPSA films over the visible region was close to 100%. Spectra were recorded at several randomly chosen locations in the sample, and other samples were measured to confirm reproducibility. The result assume that a SWCNT formed by high anisotropic π-conjugation shows a larger value of the order parameter than that of the liquid crystalline (LC) template.",

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AU - Okano, Kunihiko

AU - Noguchi, Ikuyo

AU - Yamashita, Takashi

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Y1 - 2010/7/13

N2 - The use of a sulfonated polyaramide, poly-(p-sulfophenylene- terephthalamide) (PPSA) was proposed for the preparation of ordered SWCNT films. 20 mg of PPSA and 5 mg of SWCNTs were mixed in 1mL of water and were ultrasonically agitated for 5 h To obtain homogeneously aligned films and evaluate their optical properties. A small portion of the resultant solution was cast on a glass substrate, and a film was obtained by a bar coater method. The prepared films appeared transparent and the average transmittance of 100 nm thickness of transmittance of 100 nm thickness of SWCNT/PPSA films over the visible region was close to 100%. Spectra were recorded at several randomly chosen locations in the sample, and other samples were measured to confirm reproducibility. The result assume that a SWCNT formed by high anisotropic π-conjugation shows a larger value of the order parameter than that of the liquid crystalline (LC) template.

AB - The use of a sulfonated polyaramide, poly-(p-sulfophenylene- terephthalamide) (PPSA) was proposed for the preparation of ordered SWCNT films. 20 mg of PPSA and 5 mg of SWCNTs were mixed in 1mL of water and were ultrasonically agitated for 5 h To obtain homogeneously aligned films and evaluate their optical properties. A small portion of the resultant solution was cast on a glass substrate, and a film was obtained by a bar coater method. The prepared films appeared transparent and the average transmittance of 100 nm thickness of transmittance of 100 nm thickness of SWCNT/PPSA films over the visible region was close to 100%. Spectra were recorded at several randomly chosen locations in the sample, and other samples were measured to confirm reproducibility. The result assume that a SWCNT formed by high anisotropic π-conjugation shows a larger value of the order parameter than that of the liquid crystalline (LC) template.

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Anisotropic carbon nanotube films fabricated from a lyotropic liquid-crystalline polymer

Abstract

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