Polylactide (PLA) is considered the most popular and important polymer derived from renewable resources commercially available today. Although its interesting features, it suffers from some limitations. Many strategies were reported to tune PLA properties including: (i) copolymerization with monomers structurally different, (ii) stereocomplexation, (iii) polymer blending, and (iv) addition of plasticizers. Stereocomplexation of PLA results from stereoselective interactions, that rely mainly on van der Waals forces, between the two stereoregular forms of PLA, e.g PLLA and PDLA.  These interactions, when interlocked, lead to the formation of a new materials having altered physical properties in comparison to the parent polymers mainly their high melting temperatures that can reach up to 230 �C compared to 150-170�C obtained in the case of each PLA-form separately. In this work, we study the formation of stereocomplexed micron and submicron particles of PLA having different surface topochemistries and their use as fillers in PLA composites.

Polylactide (PLA) stereocomplexed particles and their use in all-PLA composites

245th National Meeting (2013)

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