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首页> 外文期刊>Journal of Applied Polymer Science >Examination of data relating to the thermodynamic and kinetic interactions between nonvolatile aqueous solutes and three ethylene-vinyl acetate copolymers
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Examination of data relating to the thermodynamic and kinetic interactions between nonvolatile aqueous solutes and three ethylene-vinyl acetate copolymers

机译：检验与非挥发性水溶质和三种乙烯-乙酸乙烯酯共聚物之间的热力学和动力学相互作用有关的数据

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摘要

Distribution coefficient (K-s) and diffusivity [diffusion coefficient (D)] values for 19 nonvolatile solutes were previously reported for three ethylene-vinyl acetate (EVA) copolymers. In this article, the interaction properties of these solutes are compared with their octanol/water partition coefficient (P-o/w) values. Adequate linear log/log correlations between K-s and P-o/w are obtained for all three copolymers, once the effect of the solution pH on solute speciation is taken into account. The resultant correlations are similar for all three copolymers, suggesting that they share a common interaction mechanism. Inverse correlations between log D and log P-o/w are established for all three materials. Although the relationship between log D and log P-o/w is linear for the EVA polymers, the scatter in the poly(vinyl acetate) data is sufficiently large that a linear relationship cannot be unilaterally established. The utility of such a model in terms of assessing the potential interaction between a plastic container and its contained contents is demonstrated. (c) 2005 Wiley Periodicals, Inc.
机译：先前报道了三种乙烯-乙酸乙烯酯（EVA）共聚物的19种非挥发性溶质的分布系数（K-s）和扩散系数[扩散系数（D）]值。在本文中，将这些溶质的相互作用特性与其辛醇/水分配系数（P-o / w）值进行了比较。一旦考虑了溶液pH值对溶质形态的影响，对于所有三种共聚物，K-s和P-o / w之间都具有足够的线性log / log相关性。对于所有三种共聚物，所得的相关性相似，表明它们具有共同的相互作用机理。对所有三种材料建立了log D和log P-o / w之间的反相关关系。尽管对于EVA聚合物，log D和log P-o / w之间的关系是线性的，但是聚乙酸乙烯酯数据中的散度足够大，以致不能单方面建立线性关系。证明了这种模型在评估塑料容器与其容纳的内容物之间的潜在相互作用方面的实用性。 （c）2005年Wiley Periodicals，Inc.

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