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Living polymerization of α-amino acid-N-carboxyanhydrides

✍ Scribed by Timothy J. Deming

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
184 KB
Volume
38
Category
Article
ISSN
0887-624X

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📜 SIMILAR VOLUMES

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## Abstract In the polymerizations of alanine, γ‐ethyl glutamate, and leucine __N__‐carboxyanhydrides (NCA's) initiated by tertiary amines and some secondary amines such as __N__‐methyl‐L‐alanine dialkylamide, a stereoselectivity was observed: the polymerization rates of L‐ and D‐NCA's were identic

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The polymerization of -y-benzyl+glutamate NCA initiated by n-hexylamine in DMF proceeds with two successive propagation r a h whose ratio is about 1.5. The onset of the increase in rate of propagation occurred a t a DP, of 7-14, which waa independent of initiator to anhydride ratio and anhydride con