Reactive Blending via Metal-Ligand Coordination in Polymeric Complexes

9528555 Belfiore本研究调查的总体目标是鉴定和表征基于分子工程设计原理表现出有吸引力的宏观物理性质的聚合物配体和过渡金属盐的新组合。 先前的研究已经表明，过渡金属盐在选定的橡胶和玻璃态聚合物的热性能和机械性能方面产生了显着的变化。 这项技术代表了寻找强相互作用的“混合物”和复合物的“下一步”。 最终，人们试图确定用于不混溶的聚合物-聚合物共混物的过渡金属增容剂，以生产具有定制性能的材料。 当金属中心与两种不同聚合物中的配体配位时，发生混溶性。 通过少量的过渡金属盐将不混溶的聚合物-聚合物共混物转化为相容的三元混合物的方法是一个非常有前途的新的研究领域，用于工业应用，其中在最终产品中需要协同的宏观物理性能。 ***

9528555 Belfiore The overall objective of this research investigation is to identify and characterize new combinations of polymeric ligands and transition-metal salts that exhibit attractive macroscopic physical properties based on molecular engineering design principles. Previous research has demonstrated that transition-metal salts produce dramatic changes in the thermal and mechanical properties of selected rubbery and glassy polymers. This technology represents the "next step" in the search for strongly interacting "blends" and complexes. Ultimately, one seeks to identify transition- metal compatibilizers for immiscible polymer-polymer blends in an effrort to produce materials with tailored properties. Miscibility occurs when the metal center coordinates to ligands in the two dissimilar polymers. %%% The methodology to transform immiscible polymer-polymer blends into compatible ternary mixtures via small amounts of a transition-metal salt is a very promising new research area for industrial applications where synergistic macroscopic physical properties are desired in the final product. ***