Lynch, Jennifer M., Knauer, Katrina and Shaw, Katherine R. (2022) Plastic additives in the ocean. In: Plastics and the ocean : origin, characterization, fate, and impacts. . Wiley, Hoboken, NJ, pp. 43-76, 34 pp. ISBN 9781119768432 DOI 10.1002/9781119768432.ch2.

Text Lynch.pdf - Reprinted Version Restricted to Registered users only Download (872kB) | Contact

Abstract

Every piece of plastic is made up of a unique combination of the host polymer, with some residual monomers or catalysts, as well as chemical additives added during processing of the plastic. This chapter aims to introduce plastic additives with a focus on their chemistry and function, transport and fate, detection in marine environments, and toxicities. The extensive list of additives can be simplified by dividing the types of additives into three groups: functional additives, colorants, and fillers/reinforcements. Plasticizers are added to plastics to improve their flexibility, durability, and elasticity over a broad range of temperatures while also reducing the glass transition temperature and the melt flow. Additives are well known to leach from plastics in the marine environment. Like their plastic counterparts, plastic additives are also susceptible to oxidative degradation and biodegradation. The toxicity of plastic additives is quite variable given the diversity of their chemical classes.

Actions (login required)

View Item