Summary
The polymerization of acrylamide in presence of some coloured monomers was investigated in order to study a spectroscopic method of titration of very diluted solution of polyacrylamide in water. Best results have been obtained with the N, 2, 4 dinitro-acryline-aerylamide monomer incorporated in low content (1/3000 mole). The presence of such low quantity of dyes does not affect the polymerization and the hydrolysis of the obtained copolymers leaves intact the dye groups. By using different dyes with different spectroscopic behaviour, this method can be very usefull to solve problems of mixture and molecular weight or hydrolysis polydispersity of polyacrylamides.
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Gramain, P., Myard, P. Polyacrylamides with coloured groups for trace analysis in water. Polymer Bulletin 3, 627–631 (1980). https://doi.org/10.1007/BF00285298
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DOI: https://doi.org/10.1007/BF00285298