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Helix–coil transition in poly-ε-carbobenzoxy-L-lysine

✍ Scribed by F. E. Karasz; J. M. O'Reilly; H. E. Bair


Publisher
Wiley (John Wiley & Sons)
Year
1965
Tongue
English
Weight
376 KB
Volume
3
Category
Article
ISSN
0006-3525

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Helix–coil transition in poly(γ-benzyl-L
✍ M. Cortijo; A. Roig; F. Garcia Blanco 📂 Article 📅 1969 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 440 KB 👁 1 views

In this paper two points are considered: the methods of evaluating the helical content 8 and the calculation of the parameters of the transition from experimental data and its interpretation. The parameter AH obtained is in good agreement with the calorimetric one and v is found to be independent of

Helix–coil transition in copolypeptides.
✍ A. Roig; F. García Blanco; M. Cortijo 📂 Article 📅 1971 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 353 KB 👁 1 views

## Abstract The thermal helix–coil transition of poly(γ‐benzyl L‐glutamate‐__co__‐ε‐carbobenzoxy‐L‐lysine) copolypeptides was studied in solvent mixtures of different compositions. The cooperativity parameter __v__ changes linearly with polymer (and solvent) composition, whereas the heat of the tra

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## Abstract The heal of solution of Poly‐ε‐carbobenzoxy‐L‐lysine and of a series of its copolymers with phenylalanine was measured as a function of solvent composition. The enthalpy change of the helix‐to‐coil transition was estimated for the various cases. The previous findings that side chains do

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Water-insoluble films of poly-L-lysine, crosslinked with formaldehyde, were suspended in aqueous media and their relative lengths measured as a function of pH. A sharp transition of the polymer was observed in the pH range which corresponded with that observed in polylysine solutions by optical rota