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Conformations of copoly(γ‐benzyl L ‐glutamate– O ‐benzyl‐ L ‐serine)
Author(s) -
Imahori Kazutomo,
Inouye Hiroshi
Publication year - 1967
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1967.360050705
Subject(s) - copolymer , dichloroacetic acid , chemistry , monomer , serine , polymer chemistry , glutamic acid , amino acid , polymer , organic chemistry , biochemistry , enzyme
Abstract Four samples of copolymers of γ‐benzyl is L ‐glutamic (BLG) and O ‐benxyl‐ L ‐serine (BLS) were synthesized by changing the mixing ratio of two monomer anhydrides. The conformations of these copolymers in CHCl 3 , containing very small amount of dichloroacetic acid (DCA) necessary to dissolve the sample, were determined by their compositions; the copolymer which is rich in BLG is mostly helical and one which is rich in BLS is mostly in the β conformation. However, in DCA solution the conformations of these copolymers are independent of their composition. The interesting observation was that the copolymer which has least con tent of BLS is richest in β‐conformation.