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Berek, Dušan

Separation of Parent Homopolymers from Diblock Copolymers by Liquid Chromatography under Limiting Conditions Desorption, 1 ‐ Principle of the Method

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  • Media type: E-Article
  • Title: Separation of Parent Homopolymers from Diblock Copolymers by Liquid Chromatography under Limiting Conditions Desorption, 1 ‐ Principle of the Method
  • Contributor: Berek, Dušan
  • imprint: Wiley, 2008
  • Published in: Macromolecular Chemistry and Physics
  • Language: English
  • DOI: 10.1002/macp.200700540
  • ISSN: 1022-1352; 1521-3935
  • Keywords: Materials Chemistry ; Organic Chemistry ; Polymers and Plastics ; Physical and Theoretical Chemistry ; Condensed Matter Physics
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:p>A novel group of liquid chromatographic methods was developed, namely liquid chromatography under limiting conditions of enthalpic interactions (LC LC). LC LC utilizes the difference in the elution rates of the slow, pore permeating small solvent molecules and the fast traveling pore excluded macromolecules. The appropriately chosen small molecules create a barrier, which selectively promotes enthalpic interactions of one kind of polymer chains within the chromatographic system and thus blocks their fast elution. The non‐interacting polymer chains elute rapidly. Two different barriers enable simultaneous separation of both parent homopolymers from a diblock copolymer.</jats:p><jats:p><jats:boxed-text content-type="graphic" position="anchor"><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/gif" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/mgra001.gif"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:boxed-text></jats:p>