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Formation mechanism of polymer whiskers obtained with polymerization

Research Project

Project/Area Number 05453152
Research Category

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

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

Principal Investigator

YAMASHITA Yuhiko  Okayama Univ.Factulty of Environmental Science & Technology, Department of Environmental Chemistry and Materials, Professor, 環境理工学部, 教授 (20032930)

Co-Investigator(Kenkyū-buntansha) YOKOYAMA Fumiyoshi  Factulty of Environmental Science & Technology, Department of Environmental Chem, 環境理工学部, 助教授 (50174876)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1994: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1993: ¥4,900,000 (Direct Cost: ¥4,900,000)
Keywordspolymer whiskers / crystallization during polymerization / rigid polymer / copolymirization / poly (p-oxybenzoyl) / poly (2-oxy-6-naphthoyl) / phase sepatation / poly (4'-oxy-4-biphenylcarbonyl) / ポリ(p-オキシシンナミイル) / らせん転位 / ポリマーウイスカー / らせん成長 / 液液相分離
Research Abstract

It has been reporeted by authors that whiskers of wholly aromatic polyesters such as poly (p-oxybenzoyl) (POB) could be obtained in a high temperature solution polymerization. Thease whiskers have an almost uniform width of 1-1.5 um and a length of 20-100um. The formation mechanism containing three steps, tha lamellar crystallization of oligomers polymerized in solution, the spiral growth of oligomer lamellae and the post polymerization of oligomers between lamellae, has already been suggested by us.
In this project, morphology and formation mechanism of poly (4'-oxy-4-biphenylcarbonyl) (POBP) crystals obtained by solution polymerization were firstly treated. It was concluded that the formation mechanism of the bundlelike aggregates of fibrillar crystals in POBP is fundamentally simillar to that in POB whiskers. Secondly the copolymerization effects of m-acetoxybenzoic and 4'-acentoxy-biphenyl-4-carboxylic acid on the morphology of POB whiskers were studied. The experimental results strongly supported our proposal for the formation mechanism of whiskers which was consisited of crystallization of oligomers with a critical length as lamellae from solution and solid state polymerization of oligomers between the lamellae. Finally, the formation mechanism of poly (p-oxycinnamyl) spherical products during solution polymerization was treated. The formation of these spherical product could be understood by overlapped phase diagram of melting depression curve and consolute curve. This new morphology control of rigid rod polymers during polymerization examind in detail.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] K.Kimura: "Synthesis and characterization of poly (oxy-2,6-naphthalenediyl carbonyl) whiskers from 2-acetoxy-6-naphthoic acid" Polymer. 34. 1054-1059 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 木村邦生: "高分子ウイスカーの形状制御とその可能性" ポリファイル. 30. 20-22 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura: "Solvent effect on the morphology of poly (oxy-1,4-benzenediylcarbonyl) whisker from 4-acetoxybenzoic acid" Polymer. 35. 123-127 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura: "Synthesis and characterization of poly (4-mercaptobenzoyl) whiskers from S-acetyl-4-mercaptobenzoic acid" Polymer. 35. 3311-3316 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 次田浩: "ポリ(p-オキシシンナミイル)の溶液重合結晶化" 繊維学会誌. 50. 256-262 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura: "Synthesis and characterization of poly (p-phenylene terephthalate) crystals obtained by crystallization during polymerication" High Performance Polymers. 6. 83-93 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura: "Synthesis and characterization of poly (4'-oxy-4-biphenylcarbonyl) crystals from 4'-acetoxybiphenyl-4-carboxylic acid" Macromolecules. 28. 255-259 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 山下祐彦: "p-アセトキシ安息香酸とp-アセキシフェニル安息香酸の溶液共重合過程における構造形成" 高分子論文集. 52. (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, S.Endo, Y.Kato, Y.Yamashita: "Synthesis and characterization of poly (oxy-2,6-naphthalendiyl carbonyl) whiskers from 2-acetoxy-6-naphthoic acid" Polymer. Vol.34, No.15. 1054-1059 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, S.Endo, Y.Kato, Y.Yamashita: "Solvent effect on the morphology of poly (oxy-1,4-benzenediylcarbonyl) whisker from 4-acetoxybenzoic acid" Polymer. Vol.35, No.1. 123-127 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, Y.Yamashita: "Possibility of shape control of polymer whiskers" Polyfile. Vol.30, No.357. 20-22 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, Y.Yamashita: "Synthsis and characterization of poly (4-mercaptobenzoyl) whiskers from S-acetyl-4-mercaptobenzoic acid" Polymef. Vol.35, No.15. 3311-3316 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Tsugita, F.Yokoyama, Y.Yamashita: "Crystallization of poly (p-oxycinnamyl) during polymerization" SEN-I GAKKAISHI. Vol.50, No.7. 256-262 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, S.Endo, Y.Kato, Y.Yamashita: "Synthesis and characterization of poly (p-phenylene terephthalate) crystals obtained by crystallization during polymerization" High Performance Polymers. Vol.6, No.1. 83-93 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.Kimura, S.Endo, Y.Kato, T.Inaba, Y.Yamashita: "Synthesis and characterization of poly (4'-oxy-4-biphenylcarbonyl) crystals from 4'-acetoxybiphenyl-4-carboxylic acid" Macromolecules. Vo28, No.1. 255-259 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Y.Yamashita, H.Tsugita, M.Kondo, F.Yokoyama: "Structure formation during solution copolymerization of p-acetoxybenzoic acid and p-acetoxyphenylbenzoic acid" Koubunshi Ronbunshu. Vo52, No.5. in print (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 次田 浩: "ポリ(p-オキシシンナミイル)の溶液重合結晶化" 繊維学会誌. 50. 256-262 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Kimura: "Synthesis and characterization of poly(p-phenylene terephthalate)crystals obtained by crystallization during polymerization" High Performance Polymers. 6. 83-93 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Kimura: "Synthesis and characterization of poly(4'-oxy-4-biphenylcarbonyl)crystals from 4'-acetoxybipheny1-4-carboxylic acid" Macromolecules. 28. 255-259 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 山下 祐彦: "p-アセトキシ安息香酸とp-アセキシフェニル安息香酸の溶液共重合過程における構造形成" 高分子論文集. 52. (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Kimura,S.Endo,Y.Kato,Y.Yamashita: "Synthesis and characterization of poly(oxy-2,6-naphthalenediyl carbonyl)whiskers from 2-acetoxy-6-naphthoic acid" Polymer. 34. 1054-1059 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Kimura,S.Endo,Y.Kato,Y.Yamashita: "Solvent effect on the morphology of poly(oxy-1,4-benzenediylcarbonyl)whisker from 4-acetoxybenzoic acid" Polymer. 35. 123-127 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 木村邦生,山下祐彦: "高分子ウイスカーの形状制御とその可能性" ポリファイル. 30. 20-22 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Kimura and Y.Yamashita: "Synthsis and characterization of poly(4-mercaptobenzoyl)whiskers from S-acetyl-4-mercaptobenzoic acid" Polymer. (in press). (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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