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Comprehensive Microstructure and Molar Mass Analysis of Polybutadiene by Multidimensional Liquid Chromatography
Author(s) -
Maiko Khumo,
Pasch Harald
Publication year - 2015
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201500381
Subject(s) - polybutadiene , microstructure , molar mass , chromatography , two dimensional chromatography , materials science , phase (matter) , analytical chemistry (journal) , size exclusion chromatography , solvent , chemistry , mass spectrometry , composite material , organic chemistry , polymer , copolymer , enzyme
For the first time, polybutadiene is separated according to microstructure using solvent gradient interaction chromatography (SGIC). Superior separation of polybutadienes having different microstructures is obtained on a silica‐based reversed stationary phase and a mobile phase of acetone–hexane. This SGIC system enables the baseline separation of 1,2‐polybutadienes and 1,4‐polybutadienes even in cases where the samples have similar molar masses. 2D liquid chromatography is performed with the SGIC method separating according to microstructure in the first dimension coupled to size exclusion chromatography separating according to molar mass in the second dimension, thus providing comprehensive information on both microstructure and molar mass.