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Scattering function of non‐substituted cellulose dissolved in N‐methylmorpholine‐N‐oxide‐monohydrate
Author(s) -
Arndt KarlFr.,
Morgenstern Bernd,
Röder Thomas
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200012)162:1<109::aid-masy109>3.0.co;2-1
Subject(s) - scattering , micelle , superposition principle , cellulose , light scattering , static light scattering , materials science , particle (ecology) , dynamic light scattering , polymer , small angle x ray scattering , chemistry , chemical physics , chemical engineering , polymer chemistry , optics , physics , organic chemistry , composite material , nanotechnology , nanoparticle , aqueous solution , quantum mechanics , engineering , oceanography , geology
Abstract The solution state of non‐substituted cellulose dissolved in the monohydrate of N‐methylmorpholine‐N‐oxide was investigated by static light scattering measurements. Molecular masses of the cellulose of several millions g/mol were observed. The overall particle scattering function can be separated into two individually scattering contributions. Two models could explain such a behaviour. First, the results reflect a bimodal distribution of the dissolved polymer consisting of large and small aggregates. The second attempt at an explanation is based on the model of a fringed micelle. The light scattering on different parts of the micelles, the core and the fringes causes the discussed scattering function. The angular dependence of the scattering intensity is simulated by superposition of particle scattering functions and parameter fit.