• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

INTRA-MOLECULAR CARRIER CONDUCTION OF CONDUCTING POLYMERS

Research Project

Project/Area Number 08455005
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

ITO Kohzo  THE UNIVERSITY OF TOKYO,GRADUATE SCHOOL OF ENGINEERING,ASSOCIATE PROFESSOR, 大学院・工学系研究科, 助教授 (00232439)

Co-Investigator(Kenkyū-buntansha) SHIMOMURA Takeshi  THE UNIVERSITY OF TOKYO,GRADUATE SCHOOL OF ENGINEERING,RESEARCH ASSISTANT, 大学院・工学系研究科, 助手 (40292768)
KIMURA Yasuyuki  THE UNIVERSITY OF TOKYO,GRADUATE SCHOOL OF ENGINEERING,LECTURER, 大学院・工学系研究科, 講師 (00225070)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1997: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥5,400,000 (Direct Cost: ¥5,400,000)
KeywordsCONJUGATED POLYMER / CONDUCTING POLYMER / ELECTRIC BIREFRINGENCE / INTRA-MOLECULAR CONDUCTION / CARRIER CONDUCTION / POLYMER CONFORMATION / ROD-COIL TRANSITON / π共役系高分子 / 高分子主鎖形態 / キャリア拡散
Research Abstract

In the solid of conducting polymers, there exist three kinds of carrier transport mechanisms, i.e., the intramolecular, intermolecular and interfibrillar ones. Then, it is difficult to distinguish each contribution by a conventional, macroscopic measurement' of the conductivity. On the other hand, when conjugated conducting polymers are dissolved in an organic solvent, we can selectively obtain the information on the one-dimensional intra-molecular conduction, because the polymer chains are isolated from each other in the solvent as an insulator. Hence, we have applied the dynamic electric birefringence spectroscopy to the solution of conducting polymers in order to reveal the relation between mainchain conformation of polymers and intra-molecular carrier transports.
In this study, we have developed an apparatus for measuring the dynamic electric birefringence in a wide frequency range, than applied it to the solution of a typical soluble conducting polymer, poly(3-hexlythophene)(P3HT). As a results, it was found that the intramolecular conduction of P3HT in pure dichloromethane showed two kinds of transport processes of polarons with different diffusion distances and diffusion constants. The slower relaxation was ascribed to the diffusion within the longer distance up to the contour length. The faster relaxation was attributed to come from the diffusion within a more local range. The existence of two carrier transport processes reflects a strong disorder effect in the one-dimensional system of conducting polymers.
Further, we have applied this method to the solution of polyaniline (PAni), and revealed the relationship between the mainchain conformation and the intra-molecular conduction.
In this study, we indicated that the dynamic electric birefringence spectroscopy is a useful technique for investigation of the main-chain conformation and the intrachain conduction mechanisms of conducting polymers.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Junichi.Oizumi: "Electric birefringence relaxation spectroscopy of linear micelles in aqueous cetyltrimethylammonium bromide solutions with sodium salicylate" Journal of Chemical Physics. 104・22. 9137-9141 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Junichi.Oizumi: "High-Frequency Dilectric of Linear Micelles in Aqueous Solution of Cetyltrimethylammonium Bromide with Sodium Salicylate" Langmuir. 13・11. 3052-3054 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takeshi.Shimomura: "Electrochromism of Polyaniline in Solution as Studied Frequency-Domain Electric Birefringence" Reports on Progress in Polymer Physics in Japan. 40. 381-384 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yuko.Nagamine: "Counterion Distribution in Polyelectrolyte Solution with Different Counterion Species" Reports on Progress in Polymer Physics in Japan. 40. 95-98 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yuko.Nagamine: "Drastic Conformation Change of LinearPolyelectrolytes in Solution with Different Species of Counterions" Reports on Progress in Polymer Physics in Japan. 39. 111-114 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takeshi.Shimomura: "Relation between Intra-Chain Conduction and Main-Chain Conformation of Conducting Polymers in Solution as Studied by Electric Birefringence Spectroscopy" Colloids and Surfaces A:Physicochemical and Engineering Aspects. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Juichi.Oizumi: "Dynamics of counterions Bound to Linear Micelles in Solutions as Studied by Electric Birefringence Relaxation and High-Frequency Dielectric Relaxation Spectroscopies" Colloids and Surfaces A:Physicochemical and Engineering Aspects. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yuko.Nagamine: "Law- and High-Frequency Relaxation in Linear Polyelectrolyte Solutions with Different Counterion Species" Colloids and Surfaces A:Physicochemical and Engineering Aspects. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Shu.Hotta: "Electric Properties of Polythiophenes,Chapter II,in Handbook of Polythiophene and Oligothiophene" VCH 印刷中,

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] JUNICHI OIZUMI: "Electric birefringence relaxation spectroscopy of linear micelles in aqueous cetyltrimethylammonium bromide solutions with sodium salicylate" Journal of Chemical Physics. 104-22. 9137-9141 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] JUNICHI OIZUMI: "High-Frequency Dielectric Relaxation of Linear Micelles in Aqueous Solution of Cetyltrimethylammonium Bromide with Sodium Salicylate" Langmuir. 13-11. 3052-3054 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] TAKESHI SHIMOMURA: "Electrochromism of Polyaniline in Solution as Studied by Frequency-Domain Electric Birefringence" Reports on Progress in Polymer Physics in Japan. 40. 381-384 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YUKO NAGAMINE: "Counterion Distribution in Polyelectrolyte Solution with Different Counterion Species" Reports on Progress in Polymer Physics in Japan. 40. 95-98 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YUKO NAGAMINE: "Drastic Conformation Change of Linear Polyelectrolytes in Solutions with Different Species of Counterions" Reports on Progress in Polymer Physics in Japan. 39. 111-114 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] TAKESHI SHIMOMURA: "Relation between Intra-Chain Conduction and Main-Chain Conformation of Conducting Polymers in Solution as Studied by Electric Birefringence Spectroscopy" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] JUNICHI OIZUMI: "Dynamics of Counterions Bound to Linear Micelles in Solutions as Studied by Electric Birefringence Relaxation and High-Frequency Dielectric Relaxation Spectroscopies" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YUKO NAGAMINE: "Low- and High-Frequency Relaxations in Linear Polyelectrolyte Solutions with Different Counterion Species" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] SHU HOTTA: Electric Properties of Polythiophenes, Chapter II,in Handbook of Polythiophene and Oligothiophene. VCH (in press),

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Junichi Oizumi: "High-Frequency Dielectric Relaxation of Linear Micelles in Aqueous Solution of Cetyltrimethylammonium Bromide with Sodium Salicylate" Langmuir. 13・11. 3052-3054 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takeshi Shimomura: "Electrochromism of Polyaniline in Solution as Studied by Frequency-Domain Electric Bire-fringence" Reports on Progress in Polymer Physics in Japan. 40. 381-384 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuko Nagamine: "Counterion Distribution in polyelectrolyte Solution with Different Counterion Species" Reports on Progress in Polymer Physics in Japan. 40. 95-98 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takeshi Shimomura: "Relation between Intra-Chain Conduction and Main-Chain Conformation of Conducting Polymers in Solution as Studied by Electric Birefringence Spectroscopy" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (印刷中).

    • Related Report
      1997 Annual Research Report
  • [Publications] Junichi Oizumi: "Dynamics of Counterions Bound to Linear Micelles in Solutions as Studied by Electric Bire-fringence Relaxation and High-Frequency Dielectric Relaxation Spectroscopies" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (印刷中).

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuko Nagamine: "Low-and High-Frequency Relaxations in Linear Polyelectrolyte Solutions with Different Counterion Species" Colloids and Surfaces A : Physicochemical and Engineering Aspects. (印刷中).

    • Related Report
      1997 Annual Research Report
  • [Publications] Shu Hotta: "Electric Properties of Polythiophenes,Chapter II,in Handbook of Polythio-phene and Oligothiophene" VCH (印刷中),

    • Related Report
      1997 Annual Research Report
  • [Publications] J.Oizumi et al.: "Electric birefringence relaxation spectroscopy of linear micelles in aqueous cetyltrimethylammonium bromide solutions with sodium salicylate" Journal of Chemical Physics. 104. 9137-9141 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Tanaka et al.: "Kinetic stndy on the early stage of the crystallization process of two forms of lysozyme crystals by photon correlation spectroscopy" Journal of Cristal Growth. 168. 44-49 (1996)

    • Related Report
      1996 Annual Research Report

URL: 

Published: 1996-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi