n-Alkyl Group-Substituted Poly(m-aniline)s: Syntheses and Magnetic Properties

Akihiro Ito, Ken Ichi Ota, Kazuyoshi Tanaka, Tokio Yamabe, Kazunari Yoshizawa

研究成果: ジャーナルへの寄稿記事

60 引用 (Scopus)

抄録

Preparation of n-alkyl group-substituted derivatives of poly(m-aniline) that we have proposed as a possible organic ferromagnetic polymer has been attempted. We started from the syntheses of the monomers, n-alkyl-substituted m-bromoanilines (R = methyl, ethyl, hexyl, dodecyl, and hexyloxy groups). The approximate solubilities of the methyl, ethyl, and hexyloxy group-substituted polymers in N-methyl-2-pyrrolidone (NMP) were nearly equal to that of poly(m-aniline). On the other hand, hexyl- and dodecyl-substituted polymers have high solubilities in the conventional organic solvents such as acetone, dichloromethane, and so forth. The ferromagnetic spin correlation was observed in the polymer oxidized by NOBF4 in the temperature range above 50 K The average total spin quantum number was determined to be 1.0 at 2 K. Moreover, in all polyradical samples, a weak antiferromagnetic interaction between spin clusters was observed at very low temperatures probably due to a conformational change in the present poly(m-aniline) derivatives.

元の言語英語
ページ(範囲)5618-5625
ページ数8
ジャーナルMacromolecules
28
発行部数16
DOI
出版物ステータス出版済み - 7 1 1995

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Aniline
Magnetic properties
Polymers
Solubility
Derivatives
Methylene Chloride
Dichloromethane
Acetone
Organic solvents
Monomers
Temperature
aniline

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

これを引用

n-Alkyl Group-Substituted Poly(m-aniline)s : Syntheses and Magnetic Properties. / Ito, Akihiro; Ota, Ken Ichi; Tanaka, Kazuyoshi; Yamabe, Tokio; Yoshizawa, Kazunari.

:: Macromolecules, 巻 28, 番号 16, 01.07.1995, p. 5618-5625.

研究成果: ジャーナルへの寄稿記事

Ito, Akihiro ; Ota, Ken Ichi ; Tanaka, Kazuyoshi ; Yamabe, Tokio ; Yoshizawa, Kazunari. / n-Alkyl Group-Substituted Poly(m-aniline)s : Syntheses and Magnetic Properties. :: Macromolecules. 1995 ; 巻 28, 番号 16. pp. 5618-5625.
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abstract = "Preparation of n-alkyl group-substituted derivatives of poly(m-aniline) that we have proposed as a possible organic ferromagnetic polymer has been attempted. We started from the syntheses of the monomers, n-alkyl-substituted m-bromoanilines (R = methyl, ethyl, hexyl, dodecyl, and hexyloxy groups). The approximate solubilities of the methyl, ethyl, and hexyloxy group-substituted polymers in N-methyl-2-pyrrolidone (NMP) were nearly equal to that of poly(m-aniline). On the other hand, hexyl- and dodecyl-substituted polymers have high solubilities in the conventional organic solvents such as acetone, dichloromethane, and so forth. The ferromagnetic spin correlation was observed in the polymer oxidized by NOBF4 in the temperature range above 50 K The average total spin quantum number was determined to be 1.0 at 2 K. Moreover, in all polyradical samples, a weak antiferromagnetic interaction between spin clusters was observed at very low temperatures probably due to a conformational change in the present poly(m-aniline) derivatives.",
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AU - Ota, Ken Ichi

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AU - Yamabe, Tokio

AU - Yoshizawa, Kazunari

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N2 - Preparation of n-alkyl group-substituted derivatives of poly(m-aniline) that we have proposed as a possible organic ferromagnetic polymer has been attempted. We started from the syntheses of the monomers, n-alkyl-substituted m-bromoanilines (R = methyl, ethyl, hexyl, dodecyl, and hexyloxy groups). The approximate solubilities of the methyl, ethyl, and hexyloxy group-substituted polymers in N-methyl-2-pyrrolidone (NMP) were nearly equal to that of poly(m-aniline). On the other hand, hexyl- and dodecyl-substituted polymers have high solubilities in the conventional organic solvents such as acetone, dichloromethane, and so forth. The ferromagnetic spin correlation was observed in the polymer oxidized by NOBF4 in the temperature range above 50 K The average total spin quantum number was determined to be 1.0 at 2 K. Moreover, in all polyradical samples, a weak antiferromagnetic interaction between spin clusters was observed at very low temperatures probably due to a conformational change in the present poly(m-aniline) derivatives.

AB - Preparation of n-alkyl group-substituted derivatives of poly(m-aniline) that we have proposed as a possible organic ferromagnetic polymer has been attempted. We started from the syntheses of the monomers, n-alkyl-substituted m-bromoanilines (R = methyl, ethyl, hexyl, dodecyl, and hexyloxy groups). The approximate solubilities of the methyl, ethyl, and hexyloxy group-substituted polymers in N-methyl-2-pyrrolidone (NMP) were nearly equal to that of poly(m-aniline). On the other hand, hexyl- and dodecyl-substituted polymers have high solubilities in the conventional organic solvents such as acetone, dichloromethane, and so forth. The ferromagnetic spin correlation was observed in the polymer oxidized by NOBF4 in the temperature range above 50 K The average total spin quantum number was determined to be 1.0 at 2 K. Moreover, in all polyradical samples, a weak antiferromagnetic interaction between spin clusters was observed at very low temperatures probably due to a conformational change in the present poly(m-aniline) derivatives.

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