Green polymer chemistry: One-pot, metal-free synthesis of macromonomer via direct polycondensation of lactic acid and its radical polymerization to graft and comb polymers
| Autor: | Yui Yoshimura, Kiyoaki Ishimoto, Maho Arimoto, Misato Nojiri, Hideki Yamane, Shiro Kobayashi, Yuji Aso, Hitomi Ohara |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Glycidyl methacrylate Condensation polymer Materials science Polymers and Plastics Organic Chemistry Radical polymerization 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Macromonomer 01 natural sciences 0104 chemical sciences Lactic acid Miniemulsion chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Copolymer Organic chemistry 0210 nano-technology |
| Zdroj: | Polymer. 90:342-350 |
| ISSN: | 0032-3861 |
| Popis: | A new and simple method of one-pot two-stage poly(lactic acid) (PLA) macromonomer synthesis has been developed. The first stage of the reaction is a direct polycondensation of lactic acid (LA) without a catalyst to PLA, and the second stage is a ring-opening addition of PLA to glycidyl methacrylate (GMA) to afford a PLA macromonomer with a methacryloyl polymerizable group (GMA-Macro). Both reactions are performed consecutively in one pot. This method produced GMA-Macro with high functionality in high yields and thus far seems the simplest and probably the cheapest way to prepare PLA macromonomers. Furthermore, the method is metal-free, offering considerable advantages for biomedical and pharmaceutical applications. GMA-Macro has been shown to be useful for the preparation of PLA graft copolymers in solution or in miniemulsion and of PLA comb polymers in solution. LA is a biobased renewable feedstock. Thus, this method provides a good opportunity to conduct ‘green polymer chemistry’. |
| Databáze: | OpenAIRE |
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