## Abstract The helix–coil transition of poly‐γ‐__N__‐carbobenzoxy‐L‐α,γ‐diaminobutyrate (PCLB) and poly‐δ‐__N__‐carbobenzoxy‐L‐ornithine (PCLO) in chloroform–dichloroacetic acid mixtures was followed by optical rotatory dispersion. PCLB displays a “normal” temperature‐induced transition, but PCLO
Enthalpy of helix–coil transition from heat of solutions. III. Poly-N-δ-carbobenzoxy-L-ornithine and poly-N-γ-carbobenzoxy-L-α,γ-aminobutyric acid
✍ Scribed by G. Giacometi; A. Turolla; A. S. Verdini; Snam
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1972
- Tongue
- English
- Weight
- 562 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0006-3525
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## Abstract X‐ray diagrams from oriented films and fibers of poly‐__N__^γ^‐carbobenzoxy‐L‐α,γ‐diaminobutyric acid (PCLB) and of poly‐__N__^δ^‐carbobenzoxy‐L‐ornithine (PCLO) have been examined. The conformation in the solid state for both polymers is that of an α‐helix, 18/5 for PCLB and 11/3 for P
## 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