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Metallomonomers are copolymerized with organic cross-linking agents. They form macroporous polymers and then are activated with an external reagent revealing an active catalyst. The appearance can be deceiving and perhaps beneficial. The article describes a specific strategy in which polymerizable metallomonomers are incorporated into macroporous polymers. Topics include homogeneous and heterogeneous catalysts, catalyst support and activation and future prospects with the use of the wolf in sheep's clothing strategy for getting transition metal catalysts into macroporous polymers.

Recent developments in vertical integration schemes including 3D-NAND flash memory have introduced a significant need for fast oxide slurries (1). Specifically, the new staircase CMP process requires exceptionally large step heights to be polished in a timely manner. Balancing low defectivity and high planarization efficiency with extremely fast bulk oxide removal rates is a difficult but crucial set of requirements. Ceria-based slurries with fine-tuned chemistries are well suited to meet these challenges. Mechanisms for ceria-based slurries polishing behavior on oxide surfaces have been the subject of investigation for a number of years now. A careful examination of these proposed mechanisms can drive the design and development of next generation fast oxide slurries.