T2 distribution spectra obtained by continuum fitting methodusing a mixed Gaussian and exponential kernel function
article
Static 1H NMR Free Induction Decay (FID) signals of polymer solids contain a lot of information about themolecular dynamics. AT2analysis of the FID has generally been performed in terms of discrete two- orthree-component models. However, this requires a priori assumption of the number of proton speciesbefore analysis. This paper presents a method of analyzing the FIDs of the polymer solid samples in termsof a continuousT2distribution. A mixed Gaussian and Exponential kernel function was used to representthe true characteristic of FIDs of the polymer solids. A simple and realistic assumption has been made toreduce the number of degrees of freedom in the continuum fitting and to make the fitting stable. Anexperimental static1H NMR FID of a typical polymer solid sample was analyzed as an example in theend to demonstrate the application of this method.
TNO Identifier
868886
ISSN
10907807
Source
Journal of Magnetic Resonance, 235, pp. 109-114.
Publisher
Elsevier
Collation
6 p.
Pages
109-114
Files
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