Analysis of DOSY and GPC-NMR experiments on polymers by multivariate curve resolution

被引:83
作者
Van Gorkom, LCM [1 ]
Hancewicz, TM [1 ]
机构
[1] Unilever Res US, Edgewater, NJ 07020 USA
关键词
GPC-NMR; diffusion-ordered spectroscopy; principal factor analysis; multivariate curve resolution; polymers;
D O I
10.1006/jmre.1997.1292
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Multivariate curve resolution (MCR) was successfully applied to the analysis of DOSY experiments on polymer mixtures and GPC-NMR experiments on industrial copolymer samples. MCR generates pure factors of spectral and concentration profiles using, successively, principal factor analysis, Varimax rotation, and alternating least-squares optimization. The method described is robust and can be directly applied to DOSY and GPC-NMR data and one obtains H-1 NMR spectra of the individual compounds with their corresponding diffusion or elution profiles, respectively. (C) 1998 Academic Press.
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页码:125 / 130
页数:6
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