Issue 39, 2008
From the journal:

Physical Chemistry Chemical Physics

Segmental order parameters in a nonionic surfactant lamellar phase studied with 1H–13C solid-state NMR

Tiago Mendes Ferreira,*a   Bruno Medronho,ab   Rachel W. Martinc  and  Daniel Topgaard*a  

* Corresponding authors

a Department of Physical Chemistry 1, Lund University, P.O. Box 124, Lund, Sweden
E-mail: Tiago.Ferreira@fkem1.lu.se; Daniel.Topgaard@fkem1.lu.se

b Departamento de Química, Universidade de Coimbra, Coimbra, Portugal

c Department of Chemistry, University of California, Irvine, USA

Abstract

A lyotropic nonionic lamellar system composed of pentaethyleneglycol mono n-dodecyl ether and D2O was studied using natural abundance 13C NMR under magic-angle spinning. Applying a two-dimensional recoupling method proposed by Dvinskikh (R-PDLF), 1H–13C dipolar couplings were estimated over a range of temperatures (300–335 K), thus enabling analysis of structural changes in the liquid crystalline system. The results obtained are used to correlate the conformation and mobility of local sites in the surfactant molecule with overall changes in the lamellar structure.

Graphical abstract: Segmental order parameters in a nonionic surfactant lamellar phase studied with 1H–13C solid-state NMR

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Article information

DOI
https://doi.org/10.1039/B807693F
Article type
Paper
Submitted
06 May 2008
Accepted
02 Jul 2008
First published
20 Aug 2008

Phys. Chem. Chem. Phys., 2008,10, 6033-6038

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Segmental order parameters in a nonionic surfactant lamellar phase studied with 1H–13C solid-state NMR

T. M. Ferreira, B. Medronho, R. W. Martin and D. Topgaard, Phys. Chem. Chem. Phys., 2008, 10, 6033 DOI: 10.1039/B807693F

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