不可溶解的 -cyclodextrin 聚合物从 -cyclodextrin 被准备(在基本条件下面把 epichlorohydrin (EPI ) 用作 crosslinking 代理人的 -CD) 。聚合物被 Fourier 变换描绘红外线(FTIR ) , Thermogravimetry (TG ) , X 光检查衍射(XRD ) 和 TG-FTIR。结果证明在 EPI 和 CD 之间的聚合确实发生了,并且很多枚 CD 戒指被互连形成一个三维的网络。而且,影响聚合的不同因素,例如到 -CD, 的 EPI 的臼齿的比率 NaOH 和反应温度的集中,被调查了。在最佳的条件下面准备的聚合物(臼齿的比率 EPI:44 的 CD, NaOH 集中 50% 在在 65 敳 ? 潴猠湹桴獥穩 ? 的质量,和温度中 ?? 佬 ?? 杩汨 ? 楤灳牥敳 ? 汁住 ??????????????????? 柳 ????? x
Insoluble β-cyclodextrin polymers were prepared from β-cyclodextrin(β-CD) using epichlorohydrin(EPI) as crosslinking agent under basic conditions.The polymers were characterized by Fourier Transform Infrared(FTIR),Thermogravimetry(TG),X-ray diffraction(XRD) and TG-FTIR.The results demonstrated that the polym-erization between EPI and β-CD indeed occurred,and a number of CD rings were interconnected to form a three-dimensional network.Moreover,different factors influencing the polymerization,e.g.molar ratio of EPI to β-CD,the concentration of NaOH and reaction temperature,have been investigated.The polymer prepared under the optimal conditions(the molar ratio EPI:β-CD of 44,the NaOH concentration 50% in mass,and the temperature at 65 ℃) showed excellent thermal stability and insolubility in organic solvents or strong acid/base.In addition,the β-cyclodextrin polymers also presented high catalytic activity for aqueous oxidation of benzyl alcohol with hy-pochlorite as oxidant.