Synthesis of High Performance Composite Materials by using Charge transfer interaction and Their Mechanical Properties

在本研究中，我们的注意力集中在一对聚合物具有吸引力的相互作用，如库仑和电荷转移相互作用。含1，3，5-三嗪的聚合物和硝化聚苯乙烯分别用作电子给体聚合物和电子受体聚合物。研究了纳米粒子在复合材料中的分散性与力学性能的关系。本研究可获得以下结果。(1)以6-二丁氨基-1，3，5-三嗪-2，4-二硫醇为原料，分别与α，α ′-二溴对二甲苯或1，6-二溴正己烷在相转移催化剂作用下进行两相缩聚反应，合成了高分子量的含1，3，5-三嗪聚合物（PTX）和（PTH）。(2)用氯仿溶液共混法制备了不同硝基含量的聚苯乙烯与（PTX）或（PTH）的复合材料。(PTX由于PTX和PTH之间的互溶性较好，因此，（PTH/PTH）复合膜比（PTH/PTH）复合膜具有更好的透光性。聚苯乙烯的硝化改性改善了PTX或PTH与PTFE的相容性，从而提高了它们的拉伸强度。(3)与PTH膜相比，PTX膜的力学性能得到了很大的提高。

In this study, Our attention has been focused on a pair of polymers having attractive interaction such as coulombic and charge transfer interactions. 1,3,5-triazine-containing polymers and nitrated poly(styrene)(NPS) were used as electron-donor polymers and electron-acceptor polymers, respectively. The relationship between dispersion of NPS in these composites and their mechanical properties was investigated. The following results could be obtained in this study.(1) 1,3,5-Triazine-containing polymers(PTX) and (PTH) with high molecular weights could be prepared from 6-dibutylamino-1,3,5-triazine-2,4-dithiol and α, α'-dibromo-p-xylene or 1,6-dibromo-n-hexane by the two phase polycondensation reaction with phase transfer catalyst, respectively.(2) The composites of (PTX) or (PTH) with poly(styrene) having various nitro group content could be obtained by the solution blend in chloroform. (PTX/NPS)composite films were more transparent than (PTH/NPS)composite films because of better miscibility between PTX and NPS. Nitration of poly(styrene) improved miscibility between PTX or PTH and NPS, which enhanced their tensile strength.(3) Mechanical properties of the PTX films were greatly improved by blending with NPS in comparison with those of the PTH films.