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Separation of Parent Homopolymers from Nonpolar Block Copolymers by Means of Liquid Chromatography under Limiting Conditions of Enthalpic Interactions
Author(s) -
Berek Dušan
Publication year - 2017
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201700137
Subject(s) - copolymer , chemistry , solubility , limiting , polymer , hydrophilic interaction chromatography , polymer chemistry , side chain , chromatography , partition coefficient , gel permeation chromatography , phase (matter) , thermoresponsive polymers in chromatography , high performance liquid chromatography , organic chemistry , mechanical engineering , engineering
Parent homopolymers are baseline‐separated from the block copolymers with nonpolar arms in a single step with the help of liquid chromatography under limiting conditions of enthalpic interactions. The small differences in the chain solubility are employed to apparently originate two similar but independent liquid chromatography retention mechanisms, enthalpic partition (absorption) and phase separation (precipitation). For the first time, the option is demonstrated to separate a complex polymer system with a tandem of two independent liquid chromatography procedures.