Cladophora cellulose hydrolysis

Finally, the spectrum of the Cladophora cellulose which survived the strong acid hydrolysis closely resembled the cotton hydrocellulose spectrum except that the resolution was much better in the former spectrum. A contrast in resolution is consistent with a difference in the average lateral dimensions for the crystallites this difference is corroborated by electron microscopy. The close similarity of multiplet relative intensities in these two samples, in spite of their different crystallite surface-to-volume ratios verifies that surface resoncinces cire not determining the apparent multiplet intensities, particularly, for the 88-92 ppm region of the C l resonance. 

Figure 7 Alternative candidates for the spectra of l and 1 derived from linear combinations of the spectra of l

Figure 6 shows spectra of five preparations of algal celluloses obtained from Cladophora spectrum A is from the original purified cellulose, spectrum B is that of the same cellulose beaten in a Waring Blender for 5 h while dispersed in water at 1 solids consistency, spectrum C is like B except that the beating was carried out at 3 solids consistency, spectrum D is that of the beaten cellulose in spectrum B following acid hydrolysis in 4N HCl for 44 h at 100 C (22 mass recovery), and... 

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