THE COMPATIBILITY OF A POLYMERIC CATALYST SUBSTRATE SOLVENT AND REACTION-RATE .3.

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作者
HUA, JD
LIU, YF
ZHANG, KJ
JIANG, SR
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O63 [高分子化学(高聚物)];
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070305 ; 080501 ; 081704 ;
摘要
In the presence of solvent, the catalytic rate in a polymeric metal complex catalyst (2)-substrate (1)-solvent (0) system is related to the solubility parameters (delta(i)) of the three components. According to thermodynamic and kinetic theories, an approximate relationship between the reaction rate and solubility parameters has been deduced as follows: [GRAPHICS] where phi2 is volume fraction of polymeric catalyst and V1 is mole volume of substrate. For a given polymeric catalyst and a given substrate, the effect of different solvents on the rate could be simplified as r = A/1 + D . exp(-B (delta0 - delta2)2) where A, B, and D are constants. From this formula it can be seen that the rate is a function of solubility parameter of solvent in the form of the reciprocal of a normal distribution. This result has been supported by experiment.
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页码:183 / 204
页数:22
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