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Separation of parent homopolymers from diblock copolymers by liquid chromatography under limiting conditions of desorption 4. Role of eluent and temperature

✍ Scribed by Dušan Berek

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
383 KB
Volume
33
Category
Article
ISSN
1615-9306

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✦ Synopsis

Separation of parent homopolymers from diblock copolymers by liquid chromatography under limiting conditions of desorption 4. Role of eluent and temperature

Liquid chromatography under limiting conditions of desorption (LC LCD) enables fast, base-line discrimination of both parent homopolymers from various diblock copolymers in one single step. The low molecular admixtures are fully separated, as well. General rules are discussed in detail for selection of mobile phases and temperature applied in LC LCD of block copolymers. Typical practical separation examples are presented. It is shown that both the composition of the well-selected LC LCD mobile phase and the temperature of experiment may vary in a broad range without affecting the basics of method. This implies that the method is robust and user friendly.

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Separation of Parent Homopolymers from D
Separation of Parent Homopolymers from Diblock Copolymers by Liquid Chromatography under Limiting Conditions Desorption, 1 - Principle of the Method
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## Abstract 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 ex

Separation of Parent Homopolymers from D
Separation of Parent Homopolymers from Diblock Copolymers by Liquid Chromatography under Limiting Conditions of Desorption, 2 - Optimization of Experimental Arrangement
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## Abstract The experimental arrangement for liquid chromatography under limiting conditions of desorption was optimized, aiming at separation of the parent homopolymers from diblock copolymers. Measurements with the block copolymer PS‐__b__‐PMMA have confirmed that the method enables fast and effi