利用水杨醛(SA)和氨甲基(MA)交联聚苯乙烯(CPS)微球反应,制得键合有双齿席夫碱配体SAAM的交联聚苯乙烯SAAM-CPS微球,再与硫酸氧钒发生螯合配位反应,制备了固载有席夫碱型氧钒(Ⅳ)配合物催化剂,采用红外光谱、扫描电镜及热失重等手段对催化剂进行了表征,并用于催化分子氧氧化苯甲醇反应,考察了催化剂用量、反应温度和溶剂对反应性能的影响.结果表明,通过SAAM-CPS微球表面配体与硫酸氧钒之间的螯合配位反应,可成功制得固载化的席夫碱型氧钒(Ⅳ)配合物催化剂;它在分子氧氧化苯甲醇的反应中表现出很高的催化活性与选择性.在常压O2和90℃的温和条件下,可高效地将苯甲醇转化为单一产物苯甲醛.另外,溶剂极性越弱,催化剂活性和苯甲醛收率越高,且具有优良的循环使用性能.
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