醋酸乙烯酯-N-羟基马来酰亚胺共聚物催化剂的制备及对环己醇氧化的研究
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摘要
合成了催化剂醋酸乙烯酯-N-羟基马来酰亚胺的共聚物{P(HOMI/VA)},通过元素分析、红外光谱进行了表征,用热重分析测试其热稳定性.该催化剂与醋酸Co(Ⅱ)形成配合物,以分子氧为氧源,研究了催化氧化环己醇的反应条件.结果表明,当反应温度为100℃时,氧压力为0.5MPa,催化剂用量为0.5g,反应时间为16h,环己醇的转化率达到33.72%.该催化剂具有反应条件温和、选择性好、操作使用简单、分离方便、环境友好等特点.
A ploy(Vinyl acetate-N-hydroxy-maleimide) is synthesized and its composition and structure are characterized by elemental analysis and FT-IR.Its thermal stability is tested by thermal gravimetric analysis.The complex is formed from the catalyst and acetic acid Co(II).This paper is to study the performance of catalytic oxidation of cyclohexanol oxidation with molecular oxygen as the oxygen source.The results show that,when the reaction temperature is 100°C,the oxygen pressure is 0.5MPa,the amount of catalyst is 0.5g,the reaction time is 16 h,the conversion rate cyclohexanol is 33.72%.In this study,the catalyst has mild reaction conditions,good selectivity,simple operation,convenient separation and environmental-friendliness.
A ploy(Vinyl acetate-N-hydroxy-maleimide) is synthesized and its composition and structure are characterized by elemental analysis and FT-IR.Its thermal stability is tested by thermal gravimetric analysis.The complex is formed from the catalyst and acetic acid Co(II).This paper is to study the performance of catalytic oxidation of cyclohexanol oxidation with molecular oxygen as the oxygen source.The results show that,when the reaction temperature is 100°C,the oxygen pressure is 0.5MPa,the amount of catalyst is 0.5g,the reaction time is 16 h,the conversion rate cyclohexanol is 33.72%.In this study,the catalyst has mild reaction conditions,good selectivity,simple operation,convenient separation and environmental-friendliness.
引文
[1]秦玉楠.新型(不预硫化)Mo-Co/TiO2加氢转化催化剂的反应机理,制备和性能评价[J].中国钼业,1998,22(1):25-26.
[2]OUQ C C,CHU M F,LIU Q.Effective catalysis of simple meta11oporphyrins for cydohexane oxidation with air in the absence ofadditives and solvents[J].Applied Catalysis A:General,2003,246:303-309.
[3]周成亮,刘晔.含膦和含氮配体功能化离子液体中RuCI3.3H2O催化分子氧氧化醇[J].催化学报,2010,31(6):656-660.
[4]杨小丽,熊传溪,黄志雄,等.VM二酸酐共聚物的合成及性能研究[J].武汉工业大学学报,1998(6):48-50.
[5]俞燕雷,宗惠娟.马来酸酐-醋酸乙烯酯梳状聚合物单阳离子的制备与表征[J].应用化学,1997,14(2):24-27.
[6]许海峰,唐瑞华,龚年华,等.N-羟基邻苯二甲酰亚胺及其类似物催化的分子氧氧化反应[J].化工进展2007,19(11):1736-1745.
[2]OUQ C C,CHU M F,LIU Q.Effective catalysis of simple meta11oporphyrins for cydohexane oxidation with air in the absence ofadditives and solvents[J].Applied Catalysis A:General,2003,246:303-309.
[3]周成亮,刘晔.含膦和含氮配体功能化离子液体中RuCI3.3H2O催化分子氧氧化醇[J].催化学报,2010,31(6):656-660.
[4]杨小丽,熊传溪,黄志雄,等.VM二酸酐共聚物的合成及性能研究[J].武汉工业大学学报,1998(6):48-50.
[5]俞燕雷,宗惠娟.马来酸酐-醋酸乙烯酯梳状聚合物单阳离子的制备与表征[J].应用化学,1997,14(2):24-27.
[6]许海峰,唐瑞华,龚年华,等.N-羟基邻苯二甲酰亚胺及其类似物催化的分子氧氧化反应[J].化工进展2007,19(11):1736-1745.