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Polymerization of DL-alanine NCA and L-alanine NCA

✍ Scribed by Iwakura, Yoshio ;Uno, Keikichi ;Oya, Masanao

Book ID: 104534289
Publisher: Wiley (John Wiley & Sons)
Year: 1967
Tongue: English
Weight: 285 KB
Volume: 5
Category: Article
ISSN: 0449-296X
DOI: 10.1002/pol.1967.150051114

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## Abstract Polymerizations of DL‐phenylalanine NCA by block copolymers of sarcosine and DL‐phenylalanine, designated by (Phe)~__m__~(Sar)__n__ and capable of reaction at the phenylalanyl terminal, were investigated in nitrobenzene solution at 25°C. With increasing __n__ for constant __m__ (__m__ =

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## Abstract The primary amine initiated homopolymerization of γ‐benzyl‐L‐glutamate NCA in dioxane at 25°C, 35°C, 50°C, and 65°C has been investigated. The reactions were virtually independent of temperature indicating an activation energy of less than 1 kcal/mole. The entropy of activation was esti