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首页> 外文期刊>Journal of Applied Polymer Science >Transport properties and mechanical behavior of poly(methyl-phenylsiloxane) membranes as a function of methyl to phenyl groups ratio
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Transport properties and mechanical behavior of poly(methyl-phenylsiloxane) membranes as a function of methyl to phenyl groups ratio

机译：聚（甲基-苯基硅氧烷）膜的传输性能和机械性能随甲基与苯基比例的变化而变化

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Membranes based on dimethyl and methyl-phenylsiloxane were synthesized and then fully characterized. Transport properties and mechanical behavior were determined as a function of different methyl/phenyl group ratios and the effects of these groups on results were established. Membrane transport properties were evaluated from n-hexane absorption studies. Static tensile stress-strain deformation measurements, stress-hysteresis determination, and stress-relaxation studies were performed to assess the mechanical behavior of these membranes. The results indicate that both physical-mechanical and transport properties are strongly affected. by the methyl group content. The increase of the phenyl groups in the polymer chain impairs mechanical properties as a result of which decrease in crosslinking degree. and gas permeability due to the diminution in free volume and penetrant solubility. (C) 2002 Wiley Periodicals, Inc. [References: 28]
机译：合成了基于二甲基和甲基-苯基硅氧烷的膜，然后对其进行了全面表征。确定了不同的甲基/苯基比例下的传输性能和机械性能，并确定了这些基团对结果的影响。通过正己烷吸收研究评估了膜的传输性能。进行静态拉伸应力-应变变形测量，应力滞后测定和应力松弛研究，以评估这些膜的机械性能。结果表明，物理机械性能和运输性能均受到严重影响。由甲基含量决定。聚合物链中苯基的增加损害了机械性能，其结果是交联度降低。由于自由体积的减小和渗透剂的溶解性而导致的气体渗透性。 （C）2002 Wiley Periodicals，Inc. [参考：28]

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