Critical chromatography and mass spectrometry of macromolecules: Determination of the position of a functional group in a chain |
| |
Authors: | A V Gorshkov M V Gorshkov I G Rozdina I A Tarasova N N Filatova V V Evreinov |
| |
Institution: | (1) Institute of Macromolecular Chemistry of NAS of Ukraine, 48, Kharkivske Shausse, Kiev, 02660, Ukraine; |
| |
Abstract: | The potentials inherent in the method of critical chromatography of macromolecules combined with mass spectrometry for the
study of the most complicated characteristic of the macromolecular structure—the determination of the position (the number)
of a defect unit or functional group in a sequence of chain units—are considered. Polyurethanes based on poly(propylene oxide)
oligomers were used as research objects. Such macromolecules contain a small amount of urethane groups in a chain that differ
from mainchain units in the energy of interaction with the surface. Variation in the molecular-mass distribution of the initial
poly(propylene oxide) oligomers makes it possible to prepare linear polyurethane macromolecules with different positions of
urethane groups. Critical chromatography offers a way to separate macromolecules with different amounts of urethane groups
and positions of these groups in chains. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |