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Home  >  Journal list  >  Polymer Journal  >  Vol.17  No.4 (1985)  >  pp.621-631

Polymer Journal
<<Previous article Vol.17  No.4 (1985)   pp.621 - 631 Next article>>

Random-Coiled Conformation of Polypeptide Chains II. Experimentally Evaluated Characteristic Ratio of Poly(N5-2-hydroxyethyl-L-glutamine) and Theoretical Conformational Analysis of Poly(L-glutamine) and Poly(L-glutamic acid)

Masahito Oka1), Toshio Hayashi2) and Akio Nakajima1)
1) Department of Polymer Chemistry, Kyoto University
2) Research Center for Medical Polymers and Biomaterials, Kyoto University

ABSTRACT:  Random-coiled conformations of fractionated poly(N5-2-hydroxyethyl-L-glutamine) were experimentally investigated and the characteristic ratio was obtained by the Stockmayer–Fixman equation with the experimental results for intrinsic viscosity and weight-averaged molecular weight. Moreover, random-coiled conformations of poly(L-glutamine) and poly(L-glutamic acid) were theoretically analyzed by conformational energy calculations based on intra-residue interactions, and the calculated characteristic ratio was in good agreement with the experimental results.

Random-Coiled Conformation/ Characteristic Ratio/ Intrinsic Viscosity/ Ultracentrifugation/ ECEPP/ Conformational Energy Calculation/ Poly(N5-2-hydroxyethyl-L-glutamine)/ Poly(L-glutamine)/ Poly(L-glutamic acid)

Published online: March 03, 2006
© Copyright, 2006 by The Society of Polymer Science, Japan



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