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首页> 外文期刊>Fluid Phase Equilibria >Predictive model for gas and vapor solubility and swelling in glassy polymers I: Application to different polymer/penetrant systems
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Predictive model for gas and vapor solubility and swelling in glassy polymers I: Application to different polymer/penetrant systems

机译：玻璃态聚合物中气体和蒸气溶解度和溶胀的预测模型I：在不同聚合物/渗透剂体系中的应用

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An extensive analysis is performed for the use of a model recently introduced for sorption induced volume dilation in glassy polymers, which can be combined with the nonequilibrium lattice fluid model (NELF) for the description of gas and vapor solubility in glassy polymers in a wide temperature range below the glass transition, from dry to fully plasticized conditions. The procedure extends the capability of previous versions of NELF model, as it refers to correlation and prediction of solubility of vapors and swelling agents. To this aim, the model counts on an additional out-of-equilibrium parameter for the polymeric species that interprets its pseudoequilibrium compressibility, and it can be retrieved from the analysis of pure component pressure-volume-temperature data below T-g. The examples discussed in this work show that the overall procedure is highly reliable and addresses the key properties of the system for the direct interpretation of the effect of temperature, solute fugacity and state of glassy polymers on pseudoequilibrium volume swelling and solute content. (C) 2014 Published by Elsevier B.V.
机译：针对最近引入的用于玻璃态聚合物中吸附诱导的体积膨胀的模型进行了广泛的分析，该模型可以与非平衡晶格流体模型（NELF）结合使用，以描述在宽温度下玻璃态聚合物中的气体和蒸气溶解度从干燥到完全塑化的玻璃化转变温度以下。该程序扩展了NELF模型先前版本的功能，因为它涉及蒸气和膨胀剂溶解度的相关性和预测。为此，该模型依靠聚合物物种的附加失衡参数来解释其假平衡可压缩性，并且可以从低于T-g的纯组分压力-体积-温度数据的分析中检索出该模型。这项工作中讨论的例子表明，整个过程是高度可靠的，并且解决了系统的关键特性，可直接解释温度，溶质逸度和玻璃态聚合物对拟平衡体积溶胀和溶质含量的影响。 （C）2014由Elsevier B.V.发布

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