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Small-angle x-ray scattering by poly-L-alanine solutions

✍ Scribed by H. Brumberger; L. C. Anderson

Publisher
Wiley (John Wiley & Sons)
Year
1972
Tongue
English
Weight
203 KB
Volume
11
Category
Article
ISSN
0006-3525

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✦ Synopsis

The radius of gyration and "persistence length" of ply-L-alanine, calculated from small-angle x-ray stattering daia, have values of 56 A and 44 1, respectively, in dichloroacetic acid, and 78 A and -30 A in a 1 : 1 v/v mixture of trifluoroacetic acid and trifluoroethanol. This can be interpreted to mean that poly-Galanine exists in a relatively rigid, predominantly a-helical conformation in dichloroacetic acid and in an extended, more flexible form in the mixed solvent system.

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