Molecular Weights of Celluloses

  title={Molecular Weights of Celluloses},
  author={E O Kraemer and WILLIAM D. LANSING},
DURING recent years a good deal of attention has been given to the investigation of the molecular weight of ‘native’ cellulose, but the results are highly discordant, the values most frequently quoted being those of Mark1 (about 30,000, on the basis of micell length by X-ray analysis and other data), Stamm2 (40,000, by sedimentation equilibrium in the ultra-centrifuge) and Staudinger3 (about 120,000 by extrapolation of viscosity vs. molecular weight data). The sedimentation equilibrium method… CONTINUE READING

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