Abstract Dielectric elastomers are the potential material to configure soft electromechanical actuators and similar modules. But, understanding the relationship between molecular structures and properties of such elastomers in real-time is a powerful and lacking tool, important to consider when properties are targeted to improve by tailoring (macro)molecular arrangement. Here, molecular bonds within VHB 4910 dielectric elastomer are explored using techniques of Raman spectroscopy. Identified bonds are correlated well with electromechanical properties and macromolecular characteristics. Then the effects of pre-strain known to influences material behavior are comprehended in the context of molecular-level structural-adaptation. Intermolecular bonds revealed for hard segments, soft segments and acrylate structure are found certainly sensitive for applied strain, persist ideology of chain entanglement towards strain-induced crystallization. These results are experimentally consistent and the work may help to focus specific structure to adapt user-defined properties.

中文翻译：

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预应变 VHB 4910 弹性体在致动器应用中的拉曼光谱

摘要 介电弹性体是配置软机电执行器和类似模块的潜在材料。但是，实时了解此类弹性体的分子结构与性能之间的关系是一种强大而缺乏的工具，当通过定制（宏观）分子排列来改善性能时，考虑这一点很重要。在这里，使用拉曼光谱技术探索了 VHB 4910 介电弹性体中的分子键。已识别的键与机电特性和大分子特性密切相关。然后在分子级结构适应的背景下理解已知影响材料行为的预应变的影响。硬链段显示的分子间键，发现软链段和丙烯酸酯结构对施加的应变肯定敏感，坚持链缠结的意识形态对应变诱导结晶。这些结果在实验上是一致的，这项工作可能有助于集中特定结构以适应用户定义的属性。