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1994 Fiscal Year Final Research Report Summary

A study on the electronic structure of aperiodic polymers by theoretical polymerization method

Research Project

Project/Area Number 04453016
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 構造化学
Research InstitutionHIROSIMA UNIVERSITY

Principal Investigator

IMAMURA Akira  Hiroshima-U., Chem., Prof., 理学部, 教授 (70076991)

Co-Investigator(Kenkyū-buntansha) AOKI Yuriko  Hiroshima-U., Chem., Res.Ass., 理学部, 助手 (10211690)
UEDA Kazuyoshi  Hiroshima-U., Chem., Res.Ass., 理学部, 助手 (40223458)
OCIAI Hiroshi  Hiroshima-U., Chem., Ass.Prof., 理学部, 助教授 (50033840)
Project Period (FY) 1992 – 1994
KeywordsMolecular Orbital Method / Density Functional Method / Theoretical Polymerization Method / Periodic Polymer / Aperiodic Polymer / Biopolymers / MOPAC (Program Package) / Adsorption on Crystal Surface
Research Abstract

We have proposed a new method, that is, the method of theoretical polymerization by which we can calculatethe electronic structure of any aperiodic polymers. The procedure of this method mimics the reaction route for the polymerizaton reaction. In this method, the electronic structure of aperiodic polymers is theoretically synthesized by adding monomer one by one. This method has been proved to be combined successfully with various methods of the molecular orbital theory, such as the extended Huckel, MNDO,AMI,PM3, ab initio, and density functional methods. The reliability of this new method is checked by comparing the calculated total energy and electron density distribution by this new method with those by the conventional method. The both are in excellent agreement with each other and the computer time by our method is much smaller than that by the conventional method.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] A.Imamura,Y.Aoki,K.Nishimoto,Y.Kurihara and A.Nagao: "Calculations of the Electronic Structure of Various Aperiodic Polymers by an Elongation Method." Int.J.Quantum Chem.52. 309-319 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y,Aoki,S.Suhai and A.Imamura: "A density Funcutional Elongation Method for the Theoretical Synthesis of Aperiodic Polymers." Int.J.Quantum Chem.52. 267-280 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Mitani,Y.Aoki and A.Imamura: "A novel molecular orbital method for the calculations of polymer syatems with local aperiodic part:The combination of the elongation method with the speriell method." J.Chem.Phys.100. 2346-2358 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Mitani and A.Imamura: "Application of the elongation method to the calculation of electronic structures of the interface and the local defect states in a polymer:An analysis of the periodicity in the electronic ststes of a nenperiodic polymer by using the cluster-series calculation." J.Chem.Phys.101. 7712-7728 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Aoki,S.Suhai and A.Imamura: "An efficient cluster elongation method in density functional theory and its application to poly-hydrogen-bonding molecules." J.Chem.Phys.101. 10808-10823 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ueda,H.Ochiai,A.Imamura and S.Nakagawa: "An Investigation of the Conformation of β-Carrageenan by Molecular Mechanis and Molecular Dynamics Simulation." Bull.Chem.Soc.Jpn.68. 95-106 (1995)

    • Description
      「研究成果報告書概要(和文)」より

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Published: 1996-04-15  

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