Synthetic rubber (SR)

Synthetic rubber is a polymer synthezied from fossil resources. For synthetic rubber (SR) at least 200 hundred different types of polymers are known. They are synthesized from various petroleum-derived monoemers. The most frequently used polymer is styrene butadiene rubber (SBR) based on the co-polymerization of styrene and 1,3-butadiene. Other polymeres known include polyisoprene, syntheized y polymerization of synthetic isopren; chloroprene synthsized by polymerization of 2-chlorobutadiene and nitrile rubber prepared from cyanobutadiene or 2-propenenitrile and butadiene. The annual world production of SR was in 2020 reported to be at about 14 million tons ( Microbial SR polymer degradation is not well studied. Today we can only assume that similar pathways will be involved in microbial degradadtion of the polyisoprene- based rubber as those kown for natural rubber (NR). However no reports have been published verifying this assumption and no reports have been published descrcibing enzymes involved in any of the other polymer forms of SR. Therefore today virtually no enzymes are knwon that degrade SR.

For enzymes linked to natural rubber (polyisoprene) degradation please visit the page: Natural rubber (NR).

Please cite the database by referring to: P.C.F. Buchholz, H.L. Zhang, P. Perez-Garcia, L-L. Nover, J. Chow, W. R. Streit, J. Pleiss (2022);Plastics degradation by hydrolytic enzymes: PAZy, the Plastics-Active Enzymes Database; under review; DOI: 10.22541/au.163924551.18365494/v1

  • sr.txt
  • Last modified: 2022/02/10 18:40
  • by Wolfgang Streit