SEPS block-polymer thermoplastic elastomer

Ethane is dehydrogenated to produce ethylene, which is used to produce EPDM, CM, CSM, EAM, and FKM elastomers and SEBS, SEPS, and SEPS block-polymer thermoplastic elastomers. Also, EPDM is used to make thermoplastic vulcanizates by dynamic vulcanization with polypropylene. 

Among thermoplastic elastomers, the styrene-based block copolymers constitute the largest quantity of TPEs. Their chemical structure makes those polymers with unsaturated center blocks (polybutadienes (SBS) or polyisoprene (SIS)) much more oxidation prone than those with saturated elastomer components (ethylene/butyl-ene (SEES) or ethylene/propylene (SEPS)) [86]. 

Benzene reacts with ethylene to produce ethylbenzene, a feedstock for styrene, the monomer used to produce SBR (the largest volume synthetic rubber), as well as SBVP for RFL dips, and the block polymers SIS, SBS, SEES, and SEPS, which are used as thermoplastic elastomers (TPEs). 

Ethylene monomer is used in a polymerization process to produce EPDM, EPM, AEM, and FKM elastomers. Ethylene monomer is also used to make block polymers such as SEES and SEPS thermoplastic elastomers. 

Styrene is used to produce several thermoplastic elastomer (TPE) block polymers, including SBS, SIS, SEES, and SEPS. 

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