‘Polysilanes’ is an important class of inorganic polymers having Si-Si σ-conjugation along the backbone. They exhibit extraordinary electronic and photophysical properties and find suitable optoelectronics applications. They’re typically synthesized by Wurtz coupling reaction of dichlorodialkylsilane or dichlorodiphenylsilane or dichloroalkylphenylsilane and their combinations under drastic reaction conditions by using sodium dispersion in boiling toluene. In such drastic condition, no functional groups sustained with polysilane polymer. In order to achieve such functional materials, researchers have interested to synthesize functional polysilane with a different functional group like a chiral group, azo-benzene containing chromophore and other heteroatoms in their main chain or side chain. Therefore it is a very challenging task to synthesize the polysilanes having effective functionality integrated with their structures. However, the modern technological demand of materials leads to obtaining polymers having functional and multifunctional activity in a single material. In this review article, we cover the synthesis of polysilane with functional activity via pre-polymerization and post-polymerization with a functional group.
Keywords: Functional polysilane, chiral polymers, optically active and photoactive properties, Wurtz coupling reaction, photoirradiation, silyl radical
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