Abstract
The characteristic ratio of equimolar-D,L-poly(γ-methyl glutamate) has been determined from measurements of intrinsic viscosity in good solvent and of molecular weight. Further, the sequence probability p that a residue is succeeded by the same kind of residue was estimated with the aid of the theoretical relation between the characteristic ratio and p reported by us. The obtained result, p=0.55, suggests that L and D residues are approximately randomly-sequenced in the chains. It was also pointed out that the kind of both initiator and solvent in polymerization system closely relates to chain configurations.
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Nakajima, A., Tanaka, S. & Itoh, K. Chain Conformation of D,L-Copoly(γ-methyl glutamate). Polym J 3, 398–402 (1972). https://doi.org/10.1295/polymj.3.398
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DOI: https://doi.org/10.1295/polymj.3.398