Chain Packing in Ethoxyphenyl−Polycarbonate by 13C{2H} REDOR

Chain Packing in Ethoxyphenyl−Polycarbonate by 13C{2H} REDOR

Rotational-echo double-resonance 13C{2H} NMR has been used to characterize the chain packing in a 13C,2H-labeled ethoxyphenyl-substituted bisphenol A polycarbonate. Approximately 36% of the repeat units are locally ordered, and between 85% and 95% of carbonate linkages are trans. The local order in...

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Veröffentlicht in:Macromolecules 2002-03, Vol.35 (7), p.2618-2623
Hauptverfasser: O'Connor, Robert D, Byers, Jeffery A, Arnold, William D, Oldfield, Eric, Wooley, Karen L, Schaefer, Jacob
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
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Zusammenfassung:Rotational-echo double-resonance 13C{2H} NMR has been used to characterize the chain packing in a 13C,2H-labeled ethoxyphenyl-substituted bisphenol A polycarbonate. Approximately 36% of the repeat units are locally ordered, and between 85% and 95% of carbonate linkages are trans. The local order in interchain packing is correlated with the local order of intrachain conformations of the carbonate linkages.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma010918q