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Article

Synthesis, Properties, and Enzymatic Hydrolysis of Poly(lactic acid)-co-Poly(propylene adipate) Block Copolymers Prepared by Reactive Extrusion

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Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
2
AIMPLAS, Asociación de Investigación de Materiales Plásticos Y Conexas, Carrer de Gustave Eiffel, 4, 46980 Valencia, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Nadia Lotti, Andreia F. Sousa and Incoronata Tritto
Polymers 2021, 13(23), 4121; https://doi.org/10.3390/polym13234121
Received: 2 November 2021 / Revised: 11 November 2021 / Accepted: 22 November 2021 / Published: 26 November 2021
(This article belongs to the Special Issue Women in Polymer Science and Technology: Sustainable Polymers)
Poly(lactic acid) (PLA) is a biobased polyester with ever-growing applications in the fields of packaging and medicine. Despite its popularity, it suffers from inherent brittleness, a very slow degradation rate and a high production cost. To tune the properties of PLA, block copolymers with poly(propylene adipate) (PPAd) prepolymer were prepared by polymerizing L-lactide and PPAd oligomers via reactive extrusion (REX) in a torque rheometer. The effect of reaction temperature and composition on the molecular weight, chemical structure, and physicochemical properties of the copolymers was studied. The introduction of PPAd successfully increased the elongation and the biodegradation rate of PLA. REX is an efficient and economical alternative method for the fast and continuous synthesis of PLA-based copolymers with tunable properties. View Full-Text
Keywords: poly(lactic acid); poly(propylene adipate); copolymers; biodegradable polymers; ring opening polymerization; reactive extrusion poly(lactic acid); poly(propylene adipate); copolymers; biodegradable polymers; ring opening polymerization; reactive extrusion
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MDPI and ACS Style

Terzopoulou, Z.; Zamboulis, A.; Bikiaris, D.N.; Valera, M.A.; Mangas, A. Synthesis, Properties, and Enzymatic Hydrolysis of Poly(lactic acid)-co-Poly(propylene adipate) Block Copolymers Prepared by Reactive Extrusion. Polymers 2021, 13, 4121. https://doi.org/10.3390/polym13234121

AMA Style

Terzopoulou Z, Zamboulis A, Bikiaris DN, Valera MA, Mangas A. Synthesis, Properties, and Enzymatic Hydrolysis of Poly(lactic acid)-co-Poly(propylene adipate) Block Copolymers Prepared by Reactive Extrusion. Polymers. 2021; 13(23):4121. https://doi.org/10.3390/polym13234121

Chicago/Turabian Style

Terzopoulou, Zoi, Alexandra Zamboulis, Dimitrios N. Bikiaris, Miguel A. Valera, and Ana Mangas. 2021. "Synthesis, Properties, and Enzymatic Hydrolysis of Poly(lactic acid)-co-Poly(propylene adipate) Block Copolymers Prepared by Reactive Extrusion" Polymers 13, no. 23: 4121. https://doi.org/10.3390/polym13234121

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