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13C-nmr chemical shift and conformation of L-alanine residues incorporated into poly(β-benzyl L-aspartate) in the solid state

✍ Scribed by Satoru Tuzi; Tadashi Komoto; Isao Ando; Hazime Saito; Akira Shoji; Takuo Ozaki


Publisher
Wiley (John Wiley & Sons)
Year
1987
Tongue
English
Weight
538 KB
Volume
26
Category
Article
ISSN
0006-3525

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## Abstract From the results of ^13^C‐nmr measurement of poly(β‐benzyl‐L‐aspartate) and its model compounds in dimethyl sulphoxide/deuterated chloroform mixtures, it was found that the side chain of poly(β‐benzyl‐L‐aspartate) is solvated by dimethyl sulphoxide in the region more than dimethyl sulph

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The helix-coil transition for poly(P-benzyl-L-aspartate) [poly(Asp[OBzl])] in solvent mixtures of trifluoroacetic acid/deuterated chloroform (F3AcOH/CDC13) was studied by means of proton and carbon-13 nmr. Conformational fixation of the side chain occurs before the coil-helix transition of the backb