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Study of New Polymer Synthesis in Aqueous Solutions or in Plain water

Research Project

Project/Area Number 08455444
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子合成
Research InstitutionKanagawa University

Principal Investigator

NISHIKUBO Tadatomi  Kanagawa University, Faculty of Engineering, Professor, 工学部, 教授 (20120967)

Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1997: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1996: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsPolymer Synthesis / Ionic Reaction / Plain Water / Aqueous Solution / Polycondensation / Polyaddition / Polymer Reaction / ポリスルフィド / 不均一反応系 / ポリ(アミドースルフィド) / 選択的酸価反応 / ビスオキサゾリン / ジチオール / DBU / ジカルボン酸 / ビスアルキルハライド
Research Abstract

Water and aqueous solutions seem to have great promise as reaction media in chemical industries, especially in the synthetic polymer industry, from the viewpoints of incombustibility, safety and economy. In fact, the radical reactions such as suspension polymerization and emulsion polymerization of various hydrophobic vinyl monomers and solution polymerization of various hydrophilic monomers with corresponding radical initiators have long been performed using water as a reaction medium. However, the careful removal of water has been required in many cases of organic synthesis and polymer synthesis based on ionic reactions, because most ionic reactions are ordinarily hindered or blocked by the presence of water. On the other hand, we found recently that esterification reaction of poly(methacrylic acid) with benzyl bromide proceeded quantitatively using DBU as a base in water. This meant that aqueous solutions or water can be used as reaction media for ionic reactions, when appropriate r … More eaction conditions including suitable catalyst system can be designed.
This research project investigated the synthesis of polymers by following polycondensation or by polyaddition reactions in aqueous solutions or in plain water under appropriate reaction conditions.
In 1996, the polyaddition of bis(4-mercaptophenyl)sulfide (BMPS) with m-phenylenebis (2-oxazoline) (MPBO) was investigated. The reaction proceeded smoothly in the mixtures of NMP with water to produce the corresponding poly(amide-sulfide). The polycondensation of adipic acid with mxylylene dibromide was also performed using DBU as a base in the mixed solvents of DMSO with water or in plain water. The reaction proceeded even in water to give the corresponding polyesters, although the rate of the reaction decreased gradually with increasing water in the mixture.
In 1997, the heterogeneous oxidation of poly(amide-sulfide), which was prepared by the polyaddition of BMPS with BMPO in plain water, was performed with 1-3 times the amount of hydrogen peroxide in a dispersion of water at 60=, and it was found that poly(amide-sulfone) was prepared by the oxidization of the polymer.
In 1998, polycondensations of bisphenols such as bisphenol-A (BPA), bisphenol-AF (BPAF), and bisphenol-S (BPS) with bis(4-chloro-3-nitrophenyl)sulfone (BCNPS) were examined using various organic or inorganic bases in mixed solvents of DMAc with water or in plain water. The reactions of bisphenols (BPA, BPAF and BPS) with BCPNS proceeded smoothly to give the corresponding polyethers in mixed solvents of DMAc with water at 60= using DBU as a base, although the rate of the reaction decreased gradually as the water in the solvent increased. Poly(sulfone-sulfide) with high molecular weight was also synthesized with good yields by the reaction of BMPS with BCNPS in the same mixed solvents or in plain water using appropriate organic bases such as DBU and tripropylamine. Less

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Selective Addition Reaction of Poly(2-isopropenyl-2-oxazoline) with Thiols and Carboxylic Acids in Aqueous Solution" Polym.J.,. 28. 134-138 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Esterification Reaction of Poly(methacrylic acid) with Alkyl Halides using DBU in Aqueous Solution" J.Polym.Sci.Part A.Polym.Chem.,. 34. 3531-3537 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Polyaddition of Bis (oxazoline) with Dithiol in Aqueous Solution" J.Polym.Sci.Part A. Polym.Chem.,. 35. 2711-2717 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Synthesis of Polyesters by Reactions of Dicarboxylic Acids with Alkylene Dihalides using DBU in Aqueous Solution" Polym.J.,. 29. 899-903 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Heterogeneous oxidation of Poly(amide-sulfide) in water" High Perform.Polym.,. 10. 23-31 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Selective addition Reaction of Poly (2-isopropenyl-2-oxazoline) with Thiols and Carboxylic Acids in Aqueous Solution" Polym.J.28. 134-138 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Esterification Reaction of Poly (methacrylic acid) with Alkyl Halides using DBU in Aqueous Solution" J.Polym.Sci.Part A.Polym.Chem.34. 3531-3537 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Polyaddition of Bis (oxazoline) with Dithiol in Aqueous Solution" J.Polym.Sci.Part A.Polym.Chem.35. 2711-2717 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Synthesis of Polyesters by Reactions of Dicarboxylic Acids with Alkylene Dihalides using 1,8-Diazabicyclo [5.4.0.] undec-7-ene in Aqueous Solution" Polym.J.29. 899-903 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Heterogeneous oxidation of Poly (amide-sulfide) in water" High Perform.Polym.10. 23-31 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo: "Synthesis of Polymers in Aqueous Solutions : Synthesis of Polyethers by Reactions of Bisphenols with Bis (4-chloro-3-nitrophenyl) sulfone using Various Bases in Aqueous Solution" High Perform.Polym.(Accepted.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions: Heterogeneous oxidation of Poly(amide-sulfide)in water" High Perform.Polym.,. 10. 23-31 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions:Heterogeneous oxidation of Poly(amide-sulfide)in water" High Perform.Polym.(印刷中).

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Nishikubo et al.: "Synthesis of Polymers in Aqueous Solutions : Polyaddition of Bisoxazolines with Dithiol in Aqueous Solutions" J.Polym.Sci.Part A.Polym Chem.(印刷中).

    • Related Report
      1996 Annual Research Report

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

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