Abstract
Small-angle X-ray scattering (SAXS) technique has been used to investigate various macromolecular structural parameters of poly(γ-benzyl-L-glutamate) (PBLG) with degree of polymerization (DP) 1100. The SAXS profile of the sample deviates from Porod’s law establishing that it falls under non-ideal two-phase structure characterized by continuous variation of electron density at the phase boundary. The theories developed by Vonk (1973) and Ruland (1971) for non-ideal two-phase structures have been applied to calculate different parameters such as D, the transverse periodicity, φ1 and φ2 the volume fractions of matter and void phases respectively, l̄1 and ll̄2, transversal lengths, ll̄r range of inhomogeneity, and ll̄c, length of coherence. The two values of E, width of transition layer, have been obtained by the method of Vonk and Ruland.
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Rath, S. Structural Investigation of Poly(γ-benzyl-L-glutamate) (DP1100). Polym J 30, 950–955 (1998). https://doi.org/10.1295/polymj.30.950
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DOI: https://doi.org/10.1295/polymj.30.950