https://doi.org/10.1351/goldbook.15252
Polymer prepared from a diene, or a substituted diene, or both in admixture.
Notes:
- A polydiene prepared from propadiene (allene) or a substituted propadiene (e.g., buta-1,2,-diene) is usually referred to as a polyallene or a polypropadiene (see the last two examples).
- Commercially widely spread polydienes, namely, polybutadienes and polyisoprenes, are commonly named with a use of numerical prefixes based on the addition mode taking place during the transformation of a monomer molecule into monomeric unit. The names are, for example: 1,2-polybutadiene for poly(1-vinylethylene) since the addition takes place at only one double bond located between carbon atoms \(\ce{C^1}\) and \(\ce{C^2}\) of a buta-1,3-diene molecule and 1,4-polybutadiene for poly(but-1-ene-1,4-diyl) since the conjugative addition resulting in enchainment of a buta-1,3-diene molecule via carbon atoms \(\ce{C^1}\) and \(\ce{C^4}\) takes place in the polymerization process. Use of these names is discouraged because a nomenclature locant should always refer to a molecule structure feature and not to a process of the molecule formation.
Examples: 