A non-systematic literature search was carried out to identify references that report measurements of residual 1,3-Butadiene (1,3-BD) in Butadiene-derived polymers and resins or assessed the potential migration of residual 1,3-BD from such polymers and resins. The following paragraphs summarize
theoretical considerations and references and table 1 contains the reported values found in the previous 20 years of literature, while Appendix 1 provides an annotated bibliography. Appendix 2 provides links to studies that have assessed migration of additives or monomers from butadiene-derived polymers or resins, but do not report any measured butadiene, which has consistently been identified as the monomer with the lowest presence in the resins (compared to the other components).