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Oxidation degradation of cellulose under the conditions of preheating alkali cellulose

L. Chod√°k

Slovak Technical University, Bratislava

 

Abstract: Various kinds of preheating of alkali cellulose used in the manuf. of viscose fibers were studied. Preheating at 18-22° for 40-70 hrs. (classical type), at up to 65° for up to 25 hrs. (thermal continuous, 2 thermal discontinuous), and chem. preheating are described. The best results and the best curve of polydispersion were obtained by preheating at low temps. for a longer time (classical), where the no. of CO2H groups increases and CO groups decrease.

Full paper in Portable Document Format: 148a598.pdf (in Slovak)

 

Chemical Papers 14 (8) 598–602 (1960)

Wednesday, October 23, 2019

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