Enhanced Exfoliation of Organoclay in Partially End-Functionalized Non-Polar Polymer
Enhanced Exfoliation of Organoclay in Partially End-Functionalized Non-Polar Polymer
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DOI：
10.1002/mame.200800287
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发表时间：
2009-03
影响因子：
3.9
通讯作者：
Xiaoliang Wang;Fangfang Tao;G. Xue;Jianjun Zhu;Tiehong Chen;Pingchuan Sun;H. Winter;A. Shi
中科院分区：
文献类型：
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作者：
Xiaoliang Wang;Fangfang Tao;G. Xue;Jianjun Zhu;Tiehong Chen;Pingchuan Sun;H. Winter;A. Shi
我们发现，如果非极性聚丁二烯（PB）与相对少量的端羟基PB （HTPB）混合，则粘土的剥落率可达20 wt.-%。选择中间聚合物组合物来增强去角质的动机是Balazs， Farmer和同事对末端功能化效应的理论预测。结合x射线衍射和流变测量来优化HTPB含量，以增强剥离效果。我们还观察了剥落粘土结构成熟过程中动力学和热力学过程的竞争。
We found that enhanced exfoliation of clay up to 20 wt.-% in non-polar polybutadiene (PB) if the PB was blended with a relatively small fraction of hydroxyl-terminated PB (HTPB). The choice of an intermediate polymer composition to enhance exfoliation was motivated by theoretical predictions of end-functionalizing effects of Balazs, Farmer, and coworkers. A combination of X-ray diffraction and rheological measurements were used to optimize HTPB content for enhanced exfoliation. We also observed the competition of the kinetic and thermodynamic processes during the ripening of the exfoliated clay structure.