期刊
EUROPEAN POLYMER JOURNAL
卷 95, 期 -, 页码 628-634出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2017.05.013
关键词
Organocatalysis; L-lactide; Ring-opening polymerization; Bulk process
资金
- EU Horizon Research and Innovation Framework Program European Joint Doctorate-SUSPOL-EJD [642671]
- European Commission
- Region Wallone FEDER
- OPTI2MAT program of excellence
- Interuniversity Attraction Pole Programme [P7/05]
- FNRS-FRFC
- Marie Curie Actions (MSCA) [642671] Funding Source: Marie Curie Actions (MSCA)
The exponential increase in the use of plastic demands that biosourced and biodegradable polymers such as poly(L-lactide)s (PLLA)s be considered to replace some petroleum based polymers in a range of applications. In order to produce PLLA in the greenest manner, i.e. by ring-opening polymerization (ROP) of L-lactide using an organocatalyst in solvent free conditions at high temperature (in bulk) has proven to be a significant challenge. Indeed, the high required temperature (180 degrees C) has led to poorly controlled polymerizations as a result of transesterification reactions of the PLLA backbone, racemization of the lactide monomers as well as the degradation and thus deactivation of the organocatalyst. We report herein the efforts made over the past 20 years in order to conduct the ROP of L-lactide in bulk by using organic molecules and the problems encountered by the scientific community in addressing this challenge to date.
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