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{{Unreferenced|date=March 2008}}
'''Polyether block amide''' or '''PEBA''' is a [[thermoplastic elastomer]] (TPE). It is known under the tradename of PEBAX® ([[Arkema]]) and VESTAMID® E ([[Evonik Industries]]). It is a [[block copolymer]] obtained by [[polycondensation]] of a carboxylic acid [[polyamide]] ([[Nylon 6|PA6]], [[Polyamide 11|PA11]], [[polyamide 12|PA12]]) with an [[alcohol]] termination polyether ([[Polytetramethylene glycol]] PTMG), [[Polyethylene glycol|PEG]]). The general chemical structure is:
:[[Hydrogen|H]][[Oxygen|O]] - ([[Carbon|C]][[Oxygen|O]] - '''[[Polyamide|PA]]''' - [[Carbon|C]][[Oxygen|O]] - [[Oxygen|O]] - '''[[Polyether|PE]]''' - [[Oxygen|O]])<sub>n</sub> - [[Hydrogen|H]]
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