高分子ラテックスと球状シリカ粒子のヘテロ凝集　　無機電解質と水溶性高分子の影響

• 古澤 邦夫

  筑波大学化学系

• 安斎 誓

  ヘキスト合成株式会社

書誌事項

タイトル別名

• Heterocoagulation of polymer latices with spherical silica: Effects of electrolyte and water-soluble polymer.
• Effects of Electrolyte and Water-Soluble Polymer
• 無機電解質と水溶性高分子の影響

抄録

Effects of an electrolyte (K₂SO₄) and water-soluble polymer (Hydroxylpropl Cellulose) on the formation of composite particles comprised of organic (amphoteric latices; particle diameter, 2a=250 nm) and inorganic (spherical silica; 2a=240-1590 nm) compounds have been investigated as a function of concentration of the electrolyte and the polymer in the medium of the basis of hetero coagulation theory. It is apparent that the addition of the electrolyte increases the adsorption densities of latices on silica and eventually approaches θ (fraction coverage of adsorption) =1 at 1.46×10^-2 M K₂SO₄ for the largest silica used. On the other hand, the addition of the water-soluble polymer in the medium weakens the affinity of latex adsorption. This effect was influenced dramatically by the concentration of polymer and its molecular weight. Furthermore, it is realized that these additives are useful to control the composition of organic and inorganic compounds in the composite particles prepared by the heterocoagulation technique.

収録刊行物

• 高分子論文集

  高分子論文集 46 (1), 21-27, 1989

  公益社団法人 高分子学会

キーワード

• Composite
• Heterocoagulation
• Latices
• Silica Particles
• Adsorption
• Desorption
• Polymer Adsorption
• Electrical Double Layer
• Dispersion

詳細情報

• CRID: 1390001206521984384
• NII論文ID: 130004034526
• DOI: 10.1295/koron.46.21
• ISSN: 18815685
• ISSN: 03862186
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可