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首页> 外文期刊>New Journal of Chemistry >Thermoplastic-elastomer composition based on an interpenetrating polymeric network of styrene butadiene rubber-poly(methyl methacrylate) as an efficient vibrational damper
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Thermoplastic-elastomer composition based on an interpenetrating polymeric network of styrene butadiene rubber-poly(methyl methacrylate) as an efficient vibrational damper

机译：基于苯乙烯丁二烯橡胶 - 聚（甲基丙烯酸甲酯）的苯乙烯丁二烯橡胶 - 聚（甲基丙烯酸甲酯）的间隙 - 弹性体组合物作为有效的振动阻尼器

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摘要

A new series of interpenetrating polymer networks (IPNs) and semi-IPNs based on styrene butadiene rubber (SBR) and poly[methyl methacrylate] (PMMA) have been synthesized by sequential polymerization. The synthesized IPNs show promise for application as vibrational dampers. Raman spectroscopy and imaging were successfully utilized to establish IPN formation for the first time. The different viscoelastic properties of the IPNs were investigated in detail. Rigidity, entanglement density and phase mixing at the interface were enhancing by increasing the PMMA loading. The significant inward shifts of the glass transition temperatures of the SBR and PMMA phases proved their mixing in the IPNs. The cross-linking of the SBR and PMMA phases contributed to the viscoelastic behavior of the IPNs. The semi-IPN with the same composition possessed a slightly higher storage modulus and damping property compared to the corresponding IPN. The experimental values of area under the linear loss modulus were larger than those obtained by group contribution analysis. Five different composite models were employed for theoretical predictions. Among them, the Davies model most accurately reproduced the experimental data. The homogeneity of the system was further studied with Cole-Cole analysis. Morphological analyses using SEM, AFM, and TEM provided clear insights into the component distributions in the IPNs. The co-continuous morphology of IPN predicted by DMA analysis, particularly at high PMMA concentration, is in good agreement with the morphological analyses and theoretical predictions. This protocol for IPN characterization can serve as a platform for designing new vibrational dampers and their chemistries.
机译：通过顺序聚合合成了基于苯乙烯丁二烯橡胶（SBR）和聚甲基丙烯酸甲酯]和聚甲基丙烯酸甲酯]（PMMA）的新系列互穿的聚合物网络（IPN）和半IPN。合成的IPNS显示了应用于振动阻尼器的承诺。 RAMAN光谱和成像已成功利用第一次建立IPN形成。详细研究了IPN的不同粘弹性。通过增加PMMA载荷，界面处的刚性，缠结密度和相位混合的增强。 SBR和PMMA阶段的玻璃化转变温度的显着内向偏移证明了它们在IPN中混合。 SBR和PMMA阶段的交联有助于IPN的粘弹性行为。与相应的IPN相比，具有相同组成的半IPN具有稍高的储存模量和阻尼性。线性损失模量下面积的实验值大于通过组贡献分析获得的面积。使用五种不同的复合模型用于理论预测。其中，戴维斯模型最精确地再现了实验数据。通过COLE-COLE分析进一步研究了该系统的均匀性。使用SEM，AFM和TEM的形态学分析为IPN中的组件分布提供了清晰的见解。通过DMA分析预测的IPN的共同连续形态，特别是在高PMMA浓度下，与形态学分析和理论预测吻合良好。该IPN表征的该协议可以作为设计新的振动阻尼器及其化学物质的平台。

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  • 来源
    《New Journal of Chemistry》 |2018年第3期|共13页
  • 作者

    James Jose; Thomas George V.; Pramoda K. P.; Kalarikkal Nandakumar; Thomas Sabu;

  • 作者单位

    St Josephs Coll Res &

    Postgrad Dept Chem Moolamattom Kerala India;

    St Josephs Coll Res &

    Postgrad Dept Chem Moolamattom Kerala India;

    ASTAR IMRE 2 Fusionopolis Way Singapore 138634 Singapore;

    Mahatma Gandhi Univ Sch Chem Sci Kottayam 686560 Kerala India;

    Mahatma Gandhi Univ Int &

    Interuniv Ctr Nanosci &

    Nanotechnol Kottayam 686560 Kerala India;

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