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Conformational study of 13C-enriched fibroin in the solid state, using the cross polarization nuclear magnetic resonance method

✍ Scribed by Toshimichi Fujiwara; Yuji Kobayashi; Yoshimasa Kyogoku; Kozo Kataoka


Book ID
118918686
Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
375 KB
Volume
187
Category
Article
ISSN
0022-2836

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Benzoxazines derived from bisphenol-A, formaldehyde, and primary amines were characterized using 13 C solid-state NMR spectroscopy. The two 1,3benzoxazines studied in this work are 2,2Ј-(3-methyl-4-dihydro-1,3,2-benzoxazine)propane, (B-m) and 2,2Ј-(3-phenyl-4-dihydro-1,3,2-benzoxazine)propane (B-a).