Dear all,
is there any literature about the Mark-Houwink parameters (K and a) for polysaccharides (pullulan, amylose, or similar) in DMSO at elevated temperatures (mostly 30 or 40 °C)?
Thanks in advance.
Jan Engmann
If not readily available in the published literature, I would be surprised if Mark-Houwink parameters for DMSO are easy to find. Walstra ("Physical Chemistry of Foods") and Lapasin & Pricl ("Rheology of Industrial Polysaccharides") give M-W parameters for polysaccharides in aqueous solution which you can use as guidance, of course under the assumption that solvent quality of DMSO is comparable to that of water for your solutes.
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