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Polyether block amide or PEBA is a thermoplastic elastomer. It is known under the tradename of PEBAX® and VESTAMID® E. It is a block copolymer obtained by polycondensation of a carboxylic acid polyamide with an alcohol termination polyether , PEG]. The general chemical structure is:
PEBA is a high performance thermoplastic elastomer. It is used to replace common elastomers – thermoplastic polyurethanes, polyester elastomers, and silicones - for these characteristics: lower density among TPE, superior mechanical and dynamic properties and keeping these properties at low temperature , and good resistance against a wide range of chemicals. It is sensitive to UV degradation, however.
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