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Effect of high-energy radiation and alkali treatment on the properties of cellulose

Effect of high-energy radiation and alkali treatment on the properties of cellulose,10.1016/S0969-806X(03)00094-X,Radiation Physics and Chemistry,Cs.

Effect of high-energy radiation and alkali treatment on the properties of cellulose   (Citations: 5)
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The effect of the treatment with NaOH or tetramethyl ammonium hydroxide solutions on preirradiated cotton-cellulose was investigated. Both the radiation and the treatment with alkali solutions caused loss of weight in cellulose; however, there was a synergism, a high weight loss was observed during alkali treatment of preirradiated samples. The radiation caused scissions of the cellulose chains and during the treatment with aqueous alkaline solutions some smaller fragments dissolved, resulting in a strong absorbance of the solutions with maximum at around 268nm. It was attributed to the absorbance of aldehyde/keto groups.
Journal: Radiation Physics and Chemistry - RADIAT PHYS CHEM , vol. 67, no. 3, pp. 505-508, 2003
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    • ...Others studies have showed that, as a pre-treatment method, ionizi ng irradiation is equivalent in terms of increasing the digestibility to that of NaOH treatm ent, one of the most commonly used method in upgrading foliage digestibility [5, 6, 7, 8, 9]...
    • ...chemical methods adapted from literature [1, 5, 10]...
    • ...Alpha-Cellulose represents high molecular mass cellulose and beta-cellulose represents the degraded cellulose and hemicellulose [1, 5, 10]...

    Márcia A. Ribeiroet al. ELECTRON BEAM PROCESSING OF SUGARCANE BAGASSE TO CELLULOSE HYDROLYSIS

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