【作者】 吕国伟； 于德梅；

【Author】 Guowei Lv;Demei Yu;School of Science, Xi’an Jiaotong University;

【机构】 西安交通大学理学院；

【摘要】 本文通过化学修饰的方法在吡咯N-位引入烷基取代基,制备了在许多有机溶剂中具有良好溶解性的可溶性导电聚吡咯聚N-(甲基丙烯酸乙基酯)吡咯(PMAEP)。随后,采用溶液混合的方法制得其与紫外光固化树脂(4)乙氧化双酚A二甲基丙烯酸酯(BPA4EODMA)的一系列四氢呋喃混合溶液。为了进一步研究其加工性能,我们对其流变性能进行了研究。研究表明,该系列混合溶液随着各组分含量的不同表现出有趣的流变特性。当混合溶液中PMAEP含量很低的时候,其表现出牛顿流体的流动行为。而随着PMAEP含量的逐渐增加,一些混合溶液表现出剪切变稀的特性,这是由于混合溶液中PMAEP分子链在流动方向上取向造成的。值得注意的是,随着溶剂四氢呋喃的逐渐增加,这些混合溶液的剪切变稀特性会逐渐减弱,直至消失,最终表现出牛顿流体的流动行为。更多还原

【Abstract】 A series of blends of a soluble conducting polypyrrole and a UV-curable resin dissolved in a tetrahydrofuran system were prepared. To further understand the processability of the blend, the rheological behaviors of the blend were investigated. The blend exhibited interesting rheological properties different from its components. Newtonian behavior was observed for some blends with low content of PMAEP. However, shear thinning arising from chain orientation or alignment of microstructures with the flow direction was observed for some blends with relative high loading of PMAEP. It was worth noting that their shear thinning weakened and disappeared eventually with the increase of the content of the solvent tetrahydrofuran further.更多还原