Jing LI, Da-kai CHEN, Jie REN. Recent Research Progress and Application Prospect of Poly (lactic acid) Stereocomplex[J]. Polymer Bulletin, 2011,24(1):33-39.
The melt point of PLA can be increased by nearly 50℃ because of the particular strong intermolecular interaction between poly (L-lactic acid) and poly (D-lactic acid) chains in stereocomplex structure.The special stereocomplex structure improves the heat resistance of PLA
as well as the mechanical properties
crystallinity and hydrolysis resistance.Recently
more and more attention has been paid to the preparation of novel stereocomplex
especially the stereocomplexation between PLA block copolymers.And the mechanism of formation of stereocomplex structure has been studied by Xray scattering
nuclear magnetic resonance
spectroscopy
surface morphology
etc.In this paper
the current research in preparation of novel stereocomplex
properties and characterization of SC-PLA and application prospect are reviewed.