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Preparation, Characterization and Morphology of Tapered Block Copolymers

Research Project

Project/Area Number 13650950
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子構造・物性(含繊維)
Research InstitutionNagoya University

Principal Investigator

TAKANO Atsushi  Nagoya Univ.Dept.Applied Chem.Assistant Prof., 工学研究科, 講師 (00236241)

Co-Investigator(Kenkyū-buntansha) TORIKAI Naoya  KEK, KENS, Research Associate, 物質構造科学研究所, 助手 (70300671)
TAKAHASHI Yoshiaki  Kyushu Univ.Dept.Chem.Associate Prof., 理工科学研究院, 助教授 (40188066)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2001: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsTapered Block Copolymer / Polystyrene / Polyisoprene / Microphase-separated Structure / アニオン重合 / オゾン分解
Research Abstract

Tapered block copolymers of styrene and isoprene were prepared by anionic copolymerization of monomer mixtures using sec-BuLi as an initiator in benzene/THF (50/50) at 0℃. Analyses based on both gas chromatography and ^1H-NMR indicated that monomer composition gradually varied from one chain end to the other. Furthermore, the tapered block copolymers were ozonized so as to decompose 1,4-microstructure in the polyisoprene sequences. The GPC analysis results of the decomposed products by ozonolysis confirmed that the products had tapered regions in the chains. Two tapered block copolymers with different chain lengths in the tapered region and one regular block copolymer were prepared. Their morphologies were investigated by transmission electron microscopy and small angle X-ray scattering. Microphase-separated structures of three copolymers were revealed to show almost the same alternating lamellar structure.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] J.Suzuki et al.: "Morphology of ABC Triblock Copolymers / Homopolymer Blend System"J.Polym.Sci. Phys.Ed.. 540. 1135-1141 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] A.Takano et al.: "Preparation and Morphology of Model Graft Copolymers of the A_3 B_2 Type with Different Graft"Polym. J.. 33. 732-740 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 高野敦志: "テーパードブロック共重合体の合成とキャラクタリゼーション"高分子論文集. 59(12). 800-806 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Atsushi Takano, Taro Miyazawa, Takatoshi Kano, Hajime Otani, Shin Tsuge and Yushu Matsushita: "Preparation and Characterization of Tapered Block Copolymers"Kobunshi Ronbunshu. 59(12). 800-806 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] J.Suzuki et al.: "Morphology of ABC Triblock Copolymers / Homopolymer Blend System"J.Polym.Sci.Phys.Ed.. 540. 1135-1141 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Takano et al.: "Preparation and Morphology of Model Graft Copolymers of the A_3 B_2 Type with Different Graft"Polym.J.. 33. 732-740 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 高野敦志: "テーパードブロック共重合体の合成とキャラクタリゼーション"高分子論文集. 59(12). 800-806 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 松下 裕秀ら: "AB_2型グラフト共重合体の調製とその平衡凝集構造"高分子論文集. 57. 803-809 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] A. Takano et al.: "Preparation and Morphology of Model Graft Copolymers of the A_3 B_2 Type with Different Graft"Polym. J.. 33. 732-740 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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