Issue 3, 2002
From the journal:

Physical Chemistry Chemical Physics

Cross-polarization for a fluoropolymer involving multiple spin baths of abundant nuclei

Paul Hazendonk,a   Robin K. Harris,*a   Giancarlo Gallib  and  Silvia Pizzanellib  

* Corresponding authors

a Department of Chemistry, University of Durham, South Road, Durham, UK
E-mail: R.K.Harris@Durham.ac.uk
Fax: 191 384-4737
Tel: 191 374 3121

b Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35-56126 Pisa, Italy

Abstract

The thermodynamic theory of cross-polarization (CP) between one abundant and one rare spin is well understood and widely applied. CP dynamics between several abundant spin baths has some inherent complications that lead to misinterpretation of the CP rates and relaxation parameters if not properly accounted for. A general thermodynamic description of CP dynamics involving up to six spin baths is developed and implemented with MATLAB. The CP dynamics for a fluorinated polymer, (2-perfluorohexylethyl acrylate)–styrene co-polymer, was analysed as a system with five spin baths—four 19F and one 1H. The CP behaviour was successfully simulated above the glass-transition temperature. The CP rates and T1ρ's are discussed in terms of the structure and dynamic behaviour of the polymer.

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Article information

DOI
https://doi.org/10.1039/B109046A
Article type
Paper
Submitted
05 Oct 2001
Accepted
08 Nov 2001
First published
18 Jan 2002

Phys. Chem. Chem. Phys., 2002,4, 507-513

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Cross-polarization for a fluoropolymer involving multiple spin baths of abundant nuclei

P. Hazendonk, R. K. Harris, G. Galli and S. Pizzanelli, Phys. Chem. Chem. Phys., 2002, 4, 507 DOI: 10.1039/B109046A

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