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Polymers 2018, 10(11), 1184; https://doi.org/10.3390/polym10111184

Bulk Modification of Poly(lactide) (PLA) via Copolymerization with Poly(propylene glycol) Diglycidylether (PPGDGE)

1
Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla 72570, Mexico
2
Instituto de Ciencias de la Universidad Autónoma de Puebla, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla 72570, Mexico
3
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla 72570, Mexico
4
Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Puebla, Puebla 72453, Mexico
*
Author to whom correspondence should be addressed.
Received: 2 October 2018 / Revised: 15 October 2018 / Accepted: 18 October 2018 / Published: 24 October 2018
(This article belongs to the Special Issue Biodegradable and Biobased Polyesters)
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Abstract

Copolymers of l-lactide and poly(propylene glycol) diglycidyl ether (PPGDGE380) were synthesized by ring opening polymerization (ROP). Stannous octoate was used as the catalyst and 1-dodecanol as the initiator. The effect of the variables on the thermal properties of the copolymers was investigated by differential scanning calorimetry (DSC). Contact angle measurements were made in order to study the wettability of the synthesized copolymers. The copolymers differed widely in their physical characteristics, ranging from weak elastomers to tougher thermoplastics, according to the ratio of l-lactide and PPGDGE380. The results showed that the copolymers were more hydrophilic than neat Poly(lactide) (PLA) and the monomer ratio had a strong influence on the hydrophilic properties. View Full-Text
Keywords: Poly(lactide); copolymerization; PPGDGE; contact angle; hydrophilic Poly(lactide); copolymerization; PPGDGE; contact angle; hydrophilic
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Castillejos, S.; Cerna, J.; Meléndez, F.; Castro, M.E.; Aguilar, R.; Márquez-Beltrán, C.; González, M. Bulk Modification of Poly(lactide) (PLA) via Copolymerization with Poly(propylene glycol) Diglycidylether (PPGDGE). Polymers 2018, 10, 1184.

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