Author： Utz M. Eisenegger J. Suter U.W. Ernst R.R.
Publisher： Academic Press
ISSN： 1090-7807
Source： Journal of Magnetic Resonance, Vol.128, Iss.2, 1997-10, pp. : 217-227
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
A method is proposed for the quantitative measurement of orientational anisotropy in glassy solids based on 2D dipolar NMR spectra with sample flipping (dipolar DECODER experiment). Purely dipolar spectra are obtained by chemical shift refocusing by a multiple pulse sequence. The experiment is applied to an investigation of a doubly 13C-labeled sample of bisphenol-A polycarbonate deformed in a channel-die apparatus. The orientational distribution function is determined by an expansion of the distribution in terms of spherical harmonics up to degree four. Copyright 1997 Academic Press.
Related content
Access to resources
Recommend
Solid-liquid transition in 2D dipolar systems
EPL (EUROPHYSICS LETTERS), Vol. 74, Iss. 2, 2006-04 ,pp. :