Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry
Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry
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DOI：
10.1002/macp.201000117
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发表时间：
2010-08-02
影响因子：
2.5
通讯作者：
Martinoty, Philippe
中科院分区：
文献类型：
--
作者：
Sanchez-Ferrer, Antoni;Rogez, Daniel;Martinoty, Philippe
采用适当的溶剂将端氨基聚醚与三异氰酸酯交联，以聚脲化学为基础合成了一系列的弹性体。对反应性的控制可以使材料成形，并且可以获得规定厚度的薄膜以进行机械测试。最终网络的强度可以通过网络化学结构的交联密度来调节。所得材料表现出良好的热稳定性和良好的力学增强性能。
A series of elastomers based on polyurea chemistry is synthesized by crosslinking amino-terminated polyethers with a triisocyanate using an appropriate solvent, which slowed down the reactivity of the amino groups. Control of the reactivity allows the shaping of the material, and films of defined thickness can be achieved for mechanical testing. The strength of the final network can be tuned by the crosslinking density of the network chemical constitution. The resulting materials show a good thermal stability and promising mechanical enhancement.