Counterion Control Over the Barrier Properties of Bilayers Derived from Double-Chain Ionic Surfactants.

Abstract

Work that was carried out under this program demonstrated that a wide variety of amphiphilic ion pairs (i.e., ion-paired amphiphiles, IPA's) can function as novel membrane-forming materials. In a broad sense, this work has significantly expanded the scope of synthetic surfactants for use in the membrane area. The demonstration that ionically-paired single chain surfactants can produce bilayer structures is particularly significant because it bridges the gap between single- and double-chain amphiphiles in terms of molecular structure-aggregation activity relationships. In addition, the finding that counterions can play a major role in defining the permeability of surfactant bilayers highlights the fact that there is considerably more room for fine-tuning the barrier properties of resulting membranes than had previously been realized. jg p.3

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Document Details

Document Type
Technical Report
Publication Date
May 06, 1995
Accession Number
ADA295944

Entities

People

  • Steven L. Regen

Organizations

  • Lehigh University

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  • Human Systems

DTIC Thesaurus Topics

  • Chemistry
  • Classification
  • Demonstrations
  • Information Operations
  • Materials
  • Membranes
  • Military Research
  • Molecular Structure
  • Permeability
  • Scientists
  • Security
  • Surface Active Substances

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  • Molecular and Cellular Biochemistry
  • Polymer Science and Technology
  • Systems Analysis and Design