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Kinetics of polymerization of N-carboxy amino acid anhydride in dimethyl sulfoxide

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

Publisher
Wiley (John Wiley & Sons)
Year
1970
Tongue
English
Weight
442 KB
Volume
8
Category
Article
ISSN
0449-296X

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✦ Synopsis

Abstract

Various kinds of NCA's were polymerized in dimethyl sulfoxide (DMSO). DL‐Alanine NCA polymerized at a fast rate without initiator, the rate being represented by R~__p__1~ = k[M]^1/2^. When the polymerization was carried out in chloroform in the presence of DMSO, the rate was represented by the equation, R~__p__2~ = K~2~[M][DMSO]^1/2^.

Glycine NCA and DL‐α‐amino‐n‐butyric acid NCA also polymerized at a fast rate in DMSO without initiator. On the other hand, N‐methylglycine NCA, DL‐ and L‐valine NCA and DL‐ and L‐leucine NCA did not polymerize in DMSO without initiator.

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