Thermoplastic elastomers (TPEs) are a class of polymeric materials that have widespread applications and development potentials. However
the majority of raw materials (including monomers and polymers) used in the present commercial TPE grades are derived from non-renewable petroleum-base resources. As one kind of biobased aliphatic polyesters with the great potential to replace petroleum-based polymers
poly (lactic acid) ( PLA) exhibits many advantages
such as abundant sources of raw materials
excellent biodegradability
and high strength/modulus
etc. Therefore
the research on PLA TPE has attracted extensive attentions from many domestic and foreign scholars. This paper reviewed the latest research progress in the fields of PLA block copolymer-type TPEs and PLA-based thermoplastic vulcanizates. And preparation routes and properties of both TPE materials were presented in detailed