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Liquid Crystal Formation Coupled with the Coil−Helix Transition in the Ternary System Poly(γ-benzyl l -glutamate)/Dichloroacetic Acid/Dichloroethane

✍ Scribed by Lin, Jiaping; Abe, Akihiro; Furuya, Hidemine; Okamoto, Satoshi

Book ID
125935925
Publisher
American Chemical Society
Year
1996
Tongue
English
Weight
188 KB
Volume
29
Category
Article
ISSN
0024-9297

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Helix–coil transition of poly(γ-benzyl-L
Helix–coil transition of poly(γ-benzyl-L-glutamate) in the dioxane–dichloroacetic acid mixture
✍ A. K. Gupta; C. Dufour; E. Marchal; H. Benoit 📂 Article 📅 1975 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 367 KB 👁 1 views

## Abstract The thermal helix–coil transition of four samples of poly(γ‐benzyl‐L‐glutamate) in the dioxane–dichloroacetic acid (DCA) mixture was studied by optical rotatory dispersion method. The transition occurred at very high DCA content (97.5% by weight) in this system. The transition parameter

Enthalpy change of the coil–helix transi
Enthalpy change of the coil–helix transition of poly(γ-benzyl L-glutamate) in dichloroacetic acid–1,2-dichloroethane mixtures
✍ Akihiro Kagemoto; Ryoichi Fujishiro 📂 Article 📅 1968 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 254 KB 👁 1 views

By combining the heat of dilution of a poly (y-benzyl L-glutamate)-dichloroacetic acid-1,2-dichloroethane solution with the corresponding heat of mixing of two solvents, the integrated heat of the coil-helix transition of poly(y-benzyl L-glutamate) in the solution was estimated to be about 750 cal/m