Effect of Temperature on the Viscosity and the Optical Rotation of Poly-ε-aminocaproyl-α-alanine
- 1 July 1960
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 33 (7) , 899-901
- https://doi.org/10.1246/bcsj.33.899
Abstract
Viscosity and optical rotation of a synthetic polymer, poly-ε-aminocaproyl-α-alanine, were studied connecting with the reversible heat coagulation. A minimum viscosity of the poly-ε-aminocaproyl-D,L-alanine solution was found at 55°C. Heating of the poly-ε-amino-caproyl-L-alanine solution produces an increase in its levo-rotation and a shift of its dispersion constant (λc value) to shorter wavelength. The mechanism of the reversible heat coagulation of the polymer was discussed to be based on the obtained result.Keywords
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