Microwave energy assisted synthesis of poly lactic acid via continuous reactive extrusion: modelling of reaction kinetics
| dc.contributor.author | Dubey, Satya P. | |
| dc.contributor.author | Abhyankar, Hrushikesh | |
| dc.contributor.author | Marchante, Veronica | |
| dc.contributor.author | Brighton, James L. | |
| dc.contributor.author | Bergmann, Björn | |
| dc.contributor.author | Trinh, Giang | |
| dc.contributor.author | David, Chantal | |
| dc.date.accessioned | 2017-04-05T11:55:33Z | |
| dc.date.available | 2017-04-05T11:55:33Z | |
| dc.date.issued | 2017-03-27 | |
| dc.description.abstract | The most commonly used batch process to manufacture PLA is ring opening polymerization (ROP) of lactide monomer in a suitable solvent, in the presence of a metallic/bimetallic catalyst (Sn, Zn, and Al) or other organic catalysts. However, this process does not lend itself to safer/cleaner and high throughput (and high volume) manufacturing. Continuous reactive extrusion of lactide monomer using a suitable reaction input has the potential to increase the throughput, and this route has been explored in the literature. In this work, reactive extrusion experiments using stannous octoate Sn(Oct)2 and tri-phenyl phosphine (PPh)3, were considered to perform ROP of lactide monomer using the microwave as an alternative energy (AE) source for activating and/or boosting the polymerization. Implementation of a microwave generator in a section of the extruder is one of the novelties of this research. A simulation model of ROP of PLA was formulated to estimate the impact of reaction kinetics and AE source on the polymerization process. Ludovic® software was used for the simulation of continuous reactive extrusion of the process. Experimental and simulated results were compared for the validation of the methodology. This work also highlights the advantages and drawbacks of most conventional metal catalysts, the effect of alternative energies on reaction mechanism, and safe and efficient production of PLA. | en_UK |
| dc.identifier.citation | Satya P. Dubey, Hrushikesh A. Abhyankar, Veronica Marchante, James L. Brighton, Björn Bergmann, Giang Trinh and Chantal David. Microwave energy assisted synthesis of poly lactic acid via continuous reactive extrusion: modelling of reaction kinetics. RSC Advances, Volume 7, pp18529-18538 | en_UK |
| dc.identifier.issn | 2046-2069 | |
| dc.identifier.uri | http://dx.doi.org/10.1039/C6RA26514F | |
| dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/11715 | |
| dc.language.iso | en | en_UK |
| dc.publisher | Royal Society of Chemistry | en_UK |
| dc.rights | Attribution 3.0 Unported (CC BY 3.0). You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) | |
| dc.title | Microwave energy assisted synthesis of poly lactic acid via continuous reactive extrusion: modelling of reaction kinetics | en_UK |
| dc.type | Article | en_UK |