Highly Branched, High Molecular Weight Polystannane from Pibutylstannane via a Novel Dehydropolyinerization/Rcarrangement Process

摘要

The development of new methods for the production of high molecular weight materials that possess structural frameworks composed of sigma-bonded arrays of group 14 heavy atoms (i.e., polysilanes, polygermanes, and polystannanes) remains a topic of current interest given the unique optical/electronic/chemical properties and potential applications that exist for these special polymers. In this regard, new classes of two- and three-dimensional hyperbranched and dendritic polysilane materials have recently been synthesized that expand both the scientific and technological horizons for the investigation of group 14 polymetallanes. For instance, it has been documented that