Crosslinked Sodium Cellulose Sulfate as a Highly Absorbent Material.

DOI Web Site Web Site 2 Citations Open Access

Bibliographic Information

Other Title
  • 高度吸水性材料としての架橋硫酸セルロースナトリウム
  • コウド キュウスイセイ ザイリョウ トシテノ カキョウ リュウサン セルロース

Search this article

Description

For the purpose of developing materials with high absorbency for electrolyte solutions, cellulose sulfate prepared by homogeneous reaction of dis-solving pulp with sulfur trioxide was reacted with glutaraldehyde in N, N-dimethylformamide and then neutralized with a aqueous sodium hydroxide to give crosslinked sodium cellulose sulfate (CCS). In the crosslinking reaction, the degree of substitution (DS) of the cellulose sulfate decreased markedly with the reaction time. The CCS showed a high absorbency in deionized water (1000 times as much as its own weight) in spite of its low DS of 0.2. Thus the absorbency toward deionized water was more influenced by change in degree of crosslinking than that in DS. In 0.9wt% sodium chloride aqueous solution, the absorbency of the CCS was about 80 times of its own weight, corresponding to that of commercial crosslinked poly (sodium carboxylate)-type absorbents. In this case, the absorbency was more influenced by change in DS than that in degree of crosslinking. This result suggests that the CCS with higher DS values results in higher absorbency in aqueous electrolyte solutions.

Journal

  • Sen'i Gakkaishi

    Sen'i Gakkaishi 49 (9), 482-485, 1993

    The Society of Fiber Science and Technology, Japan

Citations (2)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top