Interpolymer Complexes and Polymer Compatibility
Interpolymer Complexes and Polymer Compatibility
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DOI：
10.1002/marc.201200431
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发表时间：
2012-11-23
影响因子：
4.6
通讯作者：
Wolf, B. A.
中科院分区：
文献类型：
--
作者：
Eckelt, A.;Eckelt, J.;Wolf, B. A.
确定两种聚合物A和B是混溶的还是不混溶的可靠方法在许多方面将是非常有帮助的。在这方面的贡献，我们证明了为什么传统的程序不能工作。我们建议使用固有粘度[？]代替粘度的组成依赖性作为聚合物相容性的标准。两种大分子A和B是可混溶的，因为两种类型的聚合物链段之间具有足够有利的相互作用。对于这些聚合物在联合溶剂中的解决方案，这种吉布斯能量偏好的不同intersegmental接触应占上风稀释后，并导致形成的互聚物复合物，表现在偏离特性粘度的加和性。
A reliable method to decide whether two polymers A and B are miscible or incompatible would be very helpful in many ways. In this contribution we demonstrate why traditional procedures cannot work. We propose to use the intrinsic viscosities [?] of the polymer blends instead of the composition dependence of the viscosities as a criterion for polymer miscibility. Two macromolecules A and B are miscible because of sufficiently favorable interactions between the two types of polymer segments. For solutions of these polymers in a joint solvent, this Gibbs energetic preference of dissimilar intersegmental contacts should prevail upon dilution and lead to the formation of interpolymer complexes, manifesting themselves in deviations from the additivity of intrinsic viscosities.