Mainchain organometallic polymers, reactive metallacycles

On the basis of the fact that metallacycles such as metallacyclopentadiene derivatives have unique and versatile reactivity,incorporation of these units into the backbone of the polymers are quite attractive to realize mainchain reactive materials (Fig. 2). Besides, these materials are potentially attractive as novel functional materials if the unique geometry of the organometallic systems reflects the character of the polymers and/or each metal center included in the polymer chains interacts by appropriate macromolecular design. 

Accordingly, this chapter deals the synthesis and the reactions of polymers containing reactive organometallics such as cobaltacyclopentadiene and titana-cyclopentadiene units in the mainchain. That is, cobaltacyclopentadiene-containing polymers have been prepared by the metallacyclization process of a low-valent cobalt... 

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