Controlled polymerisation and purification of branched poly(lactic acid) surfactants in supercritical carbon dioxide
Product degradability, sustainability and low-toxicity are driving demand for the synthesis of biobased polymers and surfactants. Here we report the synthesis of novel surface active polymers using cyclic esters (D,L-lactide) and temperature sensitive polyols (D-sorbitol) as renewable building block...
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| Format: | Article |
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Royal Society of Chemistry
2016
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| Online Access: | https://eprints.nottingham.ac.uk/34636/ |
| _version_ | 1848794899898433536 |
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| author | Goddard, Amy R. Pérez-Nieto, Sara Passos, Thayse Marques Quilty, Brid Carmichael, Kim Irvine, Derek J. Howdle, Steven M. |
| author_facet | Goddard, Amy R. Pérez-Nieto, Sara Passos, Thayse Marques Quilty, Brid Carmichael, Kim Irvine, Derek J. Howdle, Steven M. |
| author_sort | Goddard, Amy R. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Product degradability, sustainability and low-toxicity are driving demand for the synthesis of biobased polymers and surfactants. Here we report the synthesis of novel surface active polymers using cyclic esters (D,L-lactide) and temperature sensitive polyols (D-sorbitol) as renewable building blocks. We highlight the modification of chain length and degree of branching to provide a route to tailoring the properties and application performance of these new compounds. High processing temperatures (≥180 °C) and harsh post-reaction treatments are often needed to remove residual monomer and catalysts and these can become barriers to creating materials based on renewable resources. Here we exploit supercritical carbon dioxide (scCO2) as a green solvent to overcome these challenges; significantly reducing reaction temperatures, targeting controlled molecular weights with narrow dispersities and reducing sideproduct formation. Additionally in the same pot, we can use supercritical extraction to purify the compounds and to efficiently remove unreacted reagents, which could be recovered and recycled. We believe that our approach to the production and purification of these novel branched poly(lactides) is a significant step towards the development of the next generation of biopolymers and green surfactants, combining both the use of bio-sourced raw materials and the potential to use sustainable, low energy processes and techniques. |
| first_indexed | 2025-11-14T19:23:32Z |
| format | Article |
| id | nottingham-34636 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:23:32Z |
| publishDate | 2016 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-346362020-05-04T17:57:33Z https://eprints.nottingham.ac.uk/34636/ Controlled polymerisation and purification of branched poly(lactic acid) surfactants in supercritical carbon dioxide Goddard, Amy R. Pérez-Nieto, Sara Passos, Thayse Marques Quilty, Brid Carmichael, Kim Irvine, Derek J. Howdle, Steven M. Product degradability, sustainability and low-toxicity are driving demand for the synthesis of biobased polymers and surfactants. Here we report the synthesis of novel surface active polymers using cyclic esters (D,L-lactide) and temperature sensitive polyols (D-sorbitol) as renewable building blocks. We highlight the modification of chain length and degree of branching to provide a route to tailoring the properties and application performance of these new compounds. High processing temperatures (≥180 °C) and harsh post-reaction treatments are often needed to remove residual monomer and catalysts and these can become barriers to creating materials based on renewable resources. Here we exploit supercritical carbon dioxide (scCO2) as a green solvent to overcome these challenges; significantly reducing reaction temperatures, targeting controlled molecular weights with narrow dispersities and reducing sideproduct formation. Additionally in the same pot, we can use supercritical extraction to purify the compounds and to efficiently remove unreacted reagents, which could be recovered and recycled. We believe that our approach to the production and purification of these novel branched poly(lactides) is a significant step towards the development of the next generation of biopolymers and green surfactants, combining both the use of bio-sourced raw materials and the potential to use sustainable, low energy processes and techniques. Royal Society of Chemistry 2016-06-06 Article PeerReviewed Goddard, Amy R., Pérez-Nieto, Sara, Passos, Thayse Marques, Quilty, Brid, Carmichael, Kim, Irvine, Derek J. and Howdle, Steven M. (2016) Controlled polymerisation and purification of branched poly(lactic acid) surfactants in supercritical carbon dioxide. Green Chemistry . ISSN 1463-9270 Polymers Surfactants Supercritical Carbon Dioxide http://pubs.rsc.org/en/Content/ArticleLanding/2016/GC/C6GC00745G#!divAbstract doi:10.1039/c6gc00745g doi:10.1039/c6gc00745g |
| spellingShingle | Polymers Surfactants Supercritical Carbon Dioxide Goddard, Amy R. Pérez-Nieto, Sara Passos, Thayse Marques Quilty, Brid Carmichael, Kim Irvine, Derek J. Howdle, Steven M. Controlled polymerisation and purification of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title | Controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title_full | Controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title_fullStr | Controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title_full_unstemmed | Controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title_short | Controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| title_sort | controlled polymerisation and purification
of branched poly(lactic acid) surfactants in supercritical carbon dioxide |
| topic | Polymers Surfactants Supercritical Carbon Dioxide |
| url | https://eprints.nottingham.ac.uk/34636/ https://eprints.nottingham.ac.uk/34636/ https://eprints.nottingham.ac.uk/34636/ |