Nonlinear Mechanics of Triblock Copolymer Elastomers: From Molecular Simulations to Network Models,ACS Macro Letters

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Nonlinear Mechanics of Triblock Copolymer Elastomers: From Molecular Simulations to Network Models
ACS Macro Letters ( IF 5.1 ) Pub Date : 2017-07-13 00:00:00 , DOI: 10.1021/acsmacrolett.7b00369
Amanda J. Parker _{1,

2} , Jörg Rottler _{1,

2}

Affiliation

We introduce an entropic network model for copolymer elastomers based on the evolution of microscopic chain conformations during deformation. We show that the stress results from additive contributions due to chain stretch at the global as well as entanglement level. When these parameters are computed with molecular simulations, the theory quantitatively predicts the macroscopic stress response. The model requires only one elastic modulus to describe both physically cross-linked triblock networks and un-cross-linked homopolymers.

中文翻译：

三嵌段共聚物弹性体的非线性力学：从分子模拟到网络模型

我们基于变形过程中微观链构象的演变，介绍了一种共聚物弹性体的熵网络模型。我们表明，应力是由于整体以及缠结水平上链的拉伸而产生的累加贡献所致。当通过分子模拟计算这些参数时，该理论定量地预测了宏观应力响应。该模型仅需要一个弹性模量即可描述物理交联的三嵌段网络和未交联的均聚物。

更新日期：2017-07-13

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