Summary
The Mark Houwink exponent relating intrinsic viscosity and the molecular weight are usually much larger for polysaccharides than for synthetic polymers. In a moderate range of molecular weights, it depends directly on the stiffness of the molecules considered as worm like chains. This paper demonstrates that these exponents are predictible from the model of Yamakawa-Fujii.
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Rinaudo, M. On the abnormal exponents aν and aD in Mark Houwink type equations for wormlike chain polysaccharides. Polymer Bulletin 27, 585–589 (1992). https://doi.org/10.1007/BF00300608
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DOI: https://doi.org/10.1007/BF00300608