Direct Polarization 13C and 1H Magic Angle Spinning NMR in the Characterization of Solvent-Swollen Gels

H. D H Stover, J. M J Frechet

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Direct polarization/magic angle spinning (DP/MAS)13C and1H NMR are shown to be well suited for the characterization of chemically modified cross-linked polymer gels. MAS is known to average out the residual motional anisotropies of the chain segments introduced by the cross-link points. At the same time, the 13C direct polarization method exploits the rapid spin-lattice relaxation of the solvated chain segments to give good signal to noise for quaternary and protonated carbons alike.

Original languageEnglish (US)
Pages (from-to)1574-1576
Number of pages3
JournalMacromolecules
Volume22
Issue number4
DOIs
StatePublished - Jul 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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