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Analysis of complex polymers by multidimensional analytical techniques
Author(s) -
Pasch Harald
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200109)174:1<403::aid-masy403>3.0.co;2-3
Subject(s) - characterization (materials science) , biological system , polymer , computer science , molar mass , multidimensional analysis , chemistry , materials science , nanotechnology , mathematics , organic chemistry , biology , statistics
Complex polymers are distributed in more than one direction of molecular heterogeneity. In addition to the molar mass distribution, they are frequently distributed with respect to chemical composition, functionality, and molecular architecture. For the characterization of the different types of molecular heterogeneity it is necessary to use a wide range of analytical techniques. Preferably, these techniques should be selective towards a specific type of heterogeneity. The combination of two or more selective analytical techniques yield multidimensional information on the molecular heterogeneity. The article presents the principle ideas of combining different analytical techniques in multidimensional analysis schemes. Most promising protocols for hyphenated techniques refer to the combination of two different chromatographic methods and the combination of chromatography and spectroscopy. The basic principles of two‐dimensional chromatography and the hyphenation of liquid chromatography with selective detectors will be discussed and a number of applications will be given.