Transition between Phantom and Affine Network Model Observed in Polymer Gels with Controlled Network Structure
Transition between Phantom and Affine Network Model Observed in Polymer Gels with Controlled Network Structure
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DOI：
10.1021/ma302270a
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发表时间：
2013-02-12
期刊：
影响因子：
5.5
通讯作者：
Sakai, Takamasa
中科院分区：
文献类型：
--
作者：
Akagi, Yuki;Gong, Jian Ping;Sakai, Takamasa
弹性材料的弹性模数可用仿射模型、虚拟模型或连接仿射网络模型来预测。虽然这些模型经常被使用，但我们不知道每个模型的要求条件，甚至不知道每个模型的有效性。由于网络的异构性，这些模型的验证是困难的。在这项研究中，我们试图使用具有非常均匀的网络结构的Tetra-PEG凝胶来评估这些模型。我们进行了拉伸和撕裂测试，并首次观察到了模体和仿射网络模型之间围绕预聚体重叠浓度的转变。
The elastic moduli of elastomeric materials are predicted by the affine or phantom or junction affine network models. Although these models are often used, we do not know the requirement conditions for each model or even the validity of each model. The validation of these models is difficult because of the network heterogeneity. In this study, we tried to evaluate these models using Tetra-PEG gel, which has extremely homogeneous network structure. We performed the stretching and tearing tests, and for the first time, observed the transition between the phantom and affine network models around the overlapping concentration of prepolymers.