Synthesis of Endocrine Disruptor Absorbents Based on Cycxlodextrin
2005 年 13 巻 1 号 p. 13-16
詳細
2005 年 13 巻 1 号 p. 13-16
Two kinds of absorbents (1 and 2) for endocrine-disrupting chemicals have been synthesized from β-cyclodextrin, in which 1 is β-cyclodextrin polymer combined with rice husks ash of 112 m2/g specific surface and 2 is β-cyclodextrin polyalkylene polyamine linked with polystyrene. Those absorbents are not soluble in water and exhibited removal capability for endocrine disruptor in aqueous layer with high efficiency. Absorbent 1 as well 2 show high selectivity for 4, 4-OE-isopyropidendiphenol (bisphenol A) with 97.15% and 98% removal rate respectively. On the other hand, β-cyclodextrin polymer, which is non-coexistent with rice husks ash and polystyrene itself show 63 % and only 2% removal rate of bisphenol A respectively. It is useful in a combination between β-cyclodextrin and rice husks ash or polystyrene, however, the complex of β-cyclodextrin polymer combined with amorphous silica (5) is not useful, which exhibits less 60% removal rate of bisphenol A.
