Electric Properties of Carboxymethyl Cellulose

Carboxymethyl cellulose [C6H7O(OH)3x(OCH2COOH)x]n is a derivative of the regenerated cellulose [C6H10O5]n with hydroxy-acetic acid (hydroxy ethanoic acid) CH2(OH)COOH or sodium monochloroacetate ClCH2COONa. The CMC backbone consist of D-glucose residues linked by -1,4-linkage. The molecular mass of one glucose unit in CMC chain is mCMC = 146.14 + 75.04x, where x  3 is the degree of substitution (DS). As a rule CMC is produced as sodium salt [C6H7O(OH)3x(OCH2COONa)x]n with DS = 0.41.2, then the molecular mass per unit is mNaCMC = 146.14 + 97.03x  185263 g/mol.

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Bulgarian Academy of Sciences
Bulgaria
Institute of Physical Chemistry
Bulgaria

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