摘要
以表面经偶联剂修饰的γ-Fe2O3为载体,通过聚[β-氯乙基缩水甘油醚]分别与乙二醇单甲醚和一缩二乙二醇单甲醚的醇钠盐反应,合成了两种磁性梳状聚醚三相相转移催化剂,研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性.结果表明,这类磁性催化剂在机械搅拌下易于均匀分散在水中,静置下自身能快速凝聚沉降,并具有良好的催化活性和重复使用性能.
Two magnetic triphase catalysts of comb-like polyethers supported by γ-Fe2O3 were synthesized, and their catalytic behaviors in the iodo-substitution, etherization and the addition reaction of dichlo-rocarbene to styrene were also investigated. The results show that the magnetic triphase catalysts exhibit good catalytic activity and reusability.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2002年第2期155-158,共4页
Journal of Wuhan University:Natural Science Edition
基金
湖北省自然科学基金资助项目(2000J022)
