Bulletin of the Korean Chemical Society

  • 제5권5호
  • /
  • Pages.175-178
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  • 1984
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  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Some Model Solute Affinity for a Tactic p-HEMA Membranes by K$_D$ Measurement

  • Lee, Eun-Hee (Department of Chemistry, Korea Advanced Institute of Science and Technology) ;
  • Jeon, Sang-Il (Department of Chemistry, Korea Advanced Institute of Science and Technology) ;
  • Jhon, Mu-Shik (Department of Chemistry, Korea Advanced Institute of Science and Technology)
  • 발행 : 1984.10.20
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초록

Two series of membranes have been prepared by postcrosslinking highly syndiotactic and isotactic poly (2-hydroxyethyl methacrylate), P(HEMA). The crosslinker used was hexamethylene diisocyante (HMDIC). The distribution coefficients (K$_{D2}$) of the model solutes such as urea (and thiourea), their derivatives, homologous alcohol series and amide sreies in water-swollen tactic P(HEMA) membranes at $25^{\circ}C$ were mesaured. In addition, the concentration effects of acetamide and butyramid were also measured. On the basis of hydrophobic interaction and the structural factors of tactic P(HEMA) membranes, the hydrophobic adsorption of the solutes in the polymer matrix were discussed. The results showed that the more hydrphobic the solute is, the higher the $K_{D2}$ value is. And the polymer conformation also affects the distribution of solvents.

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