Shi Laishun. The Kinetics Study of Basic Copper(II) Catalyzed Halogen Displacement Polymerization of 2,4,6-Tribromo-3-methylphenol. [J]. Journal of University of Jinan(Social Science Edition) (2):50-56(1994)
Shi Laishun. The Kinetics Study of Basic Copper(II) Catalyzed Halogen Displacement Polymerization of 2,4,6-Tribromo-3-methylphenol. [J]. Journal of University of Jinan(Social Science Edition) (2):50-56(1994)DOI:
The Kinetics Study of Basic Copper(II) Catalyzed Halogen Displacement Polymerization of 2,4,6-Tribromo-3-methylphenol
摘要
研究了各种条件下铜(Ⅱ)盐催化2
4
6—三溴间甲苯酚聚合反应的动力学.当[CuCl
2
]
<
0.05mol/L时
r-(k
1
k
2
)/(k-1)[2
4
6—三溴间甲苯酚][CH
3
ONa][CuCl
2
];当[CuCl
2
>
0.05mol/L时
γ=(k
1
k
2
)/(k-1)[2
4
6 —三溴间甲苯酚][CH
3
ONa][0.10-[CuCl
2
]);实验所得的速度方程式与铜(Ⅱ) —酚氧配合物中间体形成机理相一致.决定反应速度步骤为2
4
6—三溴间甲苯酚钠与铜(Ⅱ)盐配合物的反应
并且由实验求得了反应速度常数及反应的活化能.
Abstract
The Kinetics of basic copper (II) catalyzed polymerization of 2
4
6-tribromo-3-methylphenol is r= k1k2/k-1[2
4
6-tribromo-3-methylphenol] [CH3ONa][CuCl2] for low concentrations of copper(II) chloride
and r=k1k2/k-1 [2
4
6-tribromo-3-methyophenol] [CH3ONa](0.10-[CuCl2]) for high concentrations of copper(II) chloride ?The rate law obtained empirically is consistent with a reaction scheme in which a copper(II)-phenoxo complex is formed as a reaction intermediate ?The rate-determining step isreaction of 2
4
6-tribromo-3-methylphenolate with basic copper(II) complex
The rateconstants and active energies were calculated from the experiment.