乾式カップリング処理に用いるVTESおよびVTMS溶液のオリゴマー生成  [in Japanese] Formation of Oligomers of VTES and VTMS  [in Japanese]

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Author(s)

Abstract

Since the oligomer state of the coupling agent plays an important role in the hydrophobicity of inorganic oxides, various factors affecting the time variation in the average polymerization degree, determined through GPC analysis of preliminary treatment solution and water content determined by the Carl-Fisher method, were studied for the VTES or VTMS-Alcohol-H<sub>2</sub>O system. The main findings obtained are as follows: (1) The existence of a close relationship between the decreasing rate of the coupling agent monomer and time variation of the height of GPC elution peaks for polymer was qualitatively detected. (2) Time variation of polymerization degree determined from water content of the preliminary treatment solution is intimately related to the progressive rate of oligomer formation reaction. (3) Decreasing rates of water concentration in the preliminary treatment solution were increased by the increase in the initial water concentration, decrease in the alcohol concentration as well as the pH value of the aqueous solution and the elevation of temperature and lowered by the sequence MeOH, EtOH and <i>i</i>-PrOH.

Journal

  • Journal of The Surface Finishing Society of Japan

    Journal of The Surface Finishing Society of Japan 53(6), 393-399, 2002-06-01

    The Surface Finishing Society of Japan

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Codes

  • NII Article ID (NAID)
    10008556772
  • NII NACSIS-CAT ID (NCID)
    AN1005202X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    09151869
  • NDL Article ID
    6185240
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-291
  • Data Source
    CJP  NDL  J-STAGE 
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