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

被引:43
作者
Földváry, CM [1 ]
Takács, E [1 ]
Wojnárovits, L [1 ]
机构
[1] Hungarian Acad Sci, Chem Res Ctr, Inst Isotopes & Surface Chem, H-1525 Budapest, Hungary
关键词
cotton-cellulose; cellulose powder; radiation degradation; loss of mass; UV spectroscopy;
D O I
10.1016/S0969-806X(03)00094-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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 268 nm. It was attributed to the absorbance of aldehyde/keto groups. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:505 / 508
页数:4
相关论文
共 13 条
  • [1] [Anonymous], 2001, RADIAT PHYS CHEM, DOI DOI 10.1016/S0969-806X(00)00375
  • [2] French A.D., 1985, Physical and theoretical methods for determining the supramolecular structure of cellulose, P84
  • [3] PHILLIPS GO, 1985, CELLULOSE CHEM ITS A, P298
  • [4] PRUZINEC J, 1981, RADIOCHEM RADIOA LET, V49, P395
  • [5] RADIATION-DAMAGE AND HYDROGEN-BONDING IN COTTON CELLULOSE
    SAAFAN, AA
    SAKRAN, MA
    ABOUSEKKINA, MM
    [J]. ISOTOPENPRAXIS, 1987, 23 (10): : 359 - 363
  • [6] Radiation activation of cotton-cellulose prior to alkali treatment
    Takács, E
    Wojnárovits, L
    Földváry, C
    Borsa, J
    Sajó, I
    [J]. RESEARCH ON CHEMICAL INTERMEDIATES, 2001, 27 (7-8) : 837 - 845
  • [7] Effect of γ-irradiation on cotton-cellulose
    Takács, E
    Wojnárovits, L
    Borsa, J
    Földváry, C
    Hargittai, P
    Zöld, O
    [J]. RADIATION PHYSICS AND CHEMISTRY, 1999, 55 (5-6) : 663 - 666
  • [8] Effect of combined gamma-irradiation and alkali treatment on cotton-cellulose
    Takács, E
    Wojnárovits, L
    Földváry, C
    Hargittai, P
    Borsa, J
    Sajó, I
    [J]. RADIATION PHYSICS AND CHEMISTRY, 2000, 57 (3-6) : 399 - 403
  • [9] Tanczos I, 2000, MACROMOL CHEM PHYSIC, V201, P2550, DOI 10.1002/1521-3935(20001101)201:17<2550::AID-MACP2550>3.0.CO
  • [10] 2-K