Organic conjugated materials, including small molecule dyes, conjugated polymers and allotropes of carbon, have found widespread applications in modern electronic devices such as biological sensors, transistors, memory devices, lasers, and solar cells. Each application places unique and sometimes stringent requirements on the properties of the materials applied. Discoveries of new materials and properties can enhance performance of existing devices and lead to emerging applications. Thus, new synthetic methodologies for novel materials and basic understanding on the structure-property relationships are greatly sought after. We have developed facile synthetic methodologies for a set of trans-enediyne (EDY) molecules containing various aromatic moieties directly attached to the central double bonds. These EDYs can serve as versatile building blocks for a variety of functional conjugated polymers and we discuss our efforts in the following areas: (i) the first solution synthesis of polydiacetylenes (PDAs) using a newly developed acyclic enediyne metathesis (AEDMET) polymerization technique;1 (ii) the first examples of polytriacetylenes (PTAs) that contain aromatic groups directly attached to the polymer main-chains, through Glaser-Hay and Pd-catalyzed oxidative coupling reactions; (iii) Pt-segmented PDAs that contain cross-conjugated chromophores, differing from conventional Pt-bisacetylenide polymers;2 and (iv) boron-segmented polyacetylenes (BPAs), representing the first main-chain boron-containing conjugated polymers without aromatic groups. 1. Hu, K.; Yang, H.; Zhang, W.*; Qin, Y.* Chem. Sci. 2013, 4, 3649. 2. Hu, K.; Pandres, E.; Qin, Y.* J. Polym. Sci. A Polym. Chem. 2014, 52, 2662.

Novel functional conjugated polymers derived from a common set of enediyne building blocks

251st National Meeting (2016)

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