Differential line broadening in coupled carbon-13 magic-angle sample-spinning nuclear magnetic resonance spectra of solid polymers

Autor:	John Chung, Timothy Bowers, Eric Oldfield, Jessica Patterson, Hong Biao Le, Gary L. Turner
Rok vydání:	1992
Předmět:	chemistry.chemical_classification Magic angle Polymers and Plastics Proton Chemistry Organic Chemistry Carbon-13 Analytical chemistry Polymer Block (periodic table) Spectral line Inorganic Chemistry Nuclear magnetic resonance Differential line Materials Chemistry Spinning
Zdroj:	Macromolecules. 25:3027-3030
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma00038a004
Popis:	Large differential line broadening (DLB) of the individual components of 13 -C 1 H coupled multiplets were observed in 13 C MAS NMR spectra of solid poly(cis-butadiene), poly(cis-isoprene), poly(cis,trans-butadiene), butadien-styrene and acrylonitrile-butadiene-styrene block polymers, and poly(trans-isoprene). DLB of olefine methine carbons is manifest as broadening of the high-field doublet component in poly(cis-butadiene) and poly(cis-isoprene), while in trans segments in poly(cis-trans-butadiene) and in poly(trans-isoprene) the low-field component broadens first, on cooling
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8f97e6b66a74f28fe9298f5d82fde1e9 https://doi.org/10.1021/ma00038a004 Zobrazit plný text záznamu