Abstract
The preparation of stereoregular isotactic P(l-BnMA) and PLLA by ring-opening polymerization (ROP) of 5-(S)-[(benzyloxycarbonyl)methyl]-1,3-dioxolane-2,4-dione (l-malOCA) and (S)-5-methyl-1,3-dioxolane-2,4-dione (l-lacOCA) is reported. The polymerization process was shown to be well controlled using two easily accessible single organocatalyst/initiator systems, pyridine/l-benzyl(Bn)malate and pyridine/lactic acid (Py·LA) ion pair adducts respectively. The obtained biodegradable polymers displayed narrow dispersity (ĐM) and excellent molar mass control. All ROP reactions were conducted at ambient temperature. The stereoregularity and thermal properties of the materials were thoroughly studied, demonstrating the retention of high levels of isotactic enrichment.
Original language | English |
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Pages (from-to) | 660-670 |
Number of pages | 11 |
Journal | European Polymer Journal |
Volume | 95 |
Early online date | 3 Jun 2017 |
DOIs | |
Publication status | Published - 1 Oct 2017 |
Keywords
- O-carboxyanhydride
- stereoregularity
- isotacticity
- organocatalysis
- ring opening polymerization
- polyesters
- lactide