Definition
The phenylene units in polyphenylenes (PP) are connected to one another through carbon-carbon single bonds resulting in linear polymers comprised of carbon and hydrogen atoms only (Fig. 1). No functional groups such as esters or amides are in between the phenylenes (or benzene-diyls) as is the case in the perhaps more common aromatic polyesters, polyamides, and the like. The hexagonal phenylene units can in principle be connected in 1,2-fashion (ortho), 1,3-fashion (meta), or 1,4-fashion (para) leading to the corresponding poly(ortho-, meta-, or para-phenylene)s. Mixtures thereof can also be realized like in the poly(meta-para-phenylene), 1, shown in Fig. 1 [1]. By far the largest attention received the poly(para-phenylene)s (PPP), which is the reason why this article concentrates on them. Because of their straight main chain, parent PPP and its manifold laterally substituted derivatives such as the hexyl...
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Schlüter, A.D. (2013). Polyphenylenes. In: Kobayashi, S., Müllen, K. (eds) Encyclopedia of Polymeric Nanomaterials. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36199-9_40-1
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DOI: https://doi.org/10.1007/978-3-642-36199-9_40-1
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