Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters
This thesis details the synthesis of four novel terpene-derived monomers via the derivatisation of a-pinene and limonene (two of the most abundant terpenes). The monomers have been used in the synthesis of sustainable polyesters, which all contain a unique cyclohexane ring in their backbone. The...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
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2019
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| Online Access: | https://eprints.nottingham.ac.uk/56309/ |
| _version_ | 1848799310140932096 |
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| author | Thomsett, Megan |
| author_facet | Thomsett, Megan |
| author_sort | Thomsett, Megan |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This thesis details the synthesis of four novel terpene-derived monomers via the derivatisation of a-pinene and limonene (two of the most abundant terpenes). The monomers have been used in the synthesis of sustainable polyesters, which all contain a unique cyclohexane ring in their backbone.
The functionalisation of limonene has enabled the synthesis of two renewably-sourced monomers for the formation of terpene derived polyesters. Three methods for the synthesis of a novel hydroxy-acid are reported and their green credentials scrutinised through comparison of their sustainability-metrics. Stepgrowth homo-polymerisation of the hydroxy-acid is demonstrated to yield a low molecular weight novel polyester with 100% of its carbon content originating from the terpene starting material. The corresponding limonene diol is shown to act as a comonomer with a renewable diacid. The resultant polyesters display impressive Mns of up to 30 kDa with Tgs between -6 and 24 oC. The degradation of these materials were shown to allow recyclability of the diol monomer.
a-Pinene was used for the synthesis of two polyols, which served as comonomers with a renewable diacid, enabling the synthesis of two novel polyesters with high Tgs. The corresponding enantiomers of the a-pinene derived polymers were blended to form stereocomplexes, leading to improved thermal properties of the polyester. |
| first_indexed | 2025-11-14T20:33:38Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-56309 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:33:38Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-563092025-02-28T14:26:52Z https://eprints.nottingham.ac.uk/56309/ Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters Thomsett, Megan This thesis details the synthesis of four novel terpene-derived monomers via the derivatisation of a-pinene and limonene (two of the most abundant terpenes). The monomers have been used in the synthesis of sustainable polyesters, which all contain a unique cyclohexane ring in their backbone. The functionalisation of limonene has enabled the synthesis of two renewably-sourced monomers for the formation of terpene derived polyesters. Three methods for the synthesis of a novel hydroxy-acid are reported and their green credentials scrutinised through comparison of their sustainability-metrics. Stepgrowth homo-polymerisation of the hydroxy-acid is demonstrated to yield a low molecular weight novel polyester with 100% of its carbon content originating from the terpene starting material. The corresponding limonene diol is shown to act as a comonomer with a renewable diacid. The resultant polyesters display impressive Mns of up to 30 kDa with Tgs between -6 and 24 oC. The degradation of these materials were shown to allow recyclability of the diol monomer. a-Pinene was used for the synthesis of two polyols, which served as comonomers with a renewable diacid, enabling the synthesis of two novel polyesters with high Tgs. The corresponding enantiomers of the a-pinene derived polymers were blended to form stereocomplexes, leading to improved thermal properties of the polyester. 2019-06-17 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en arr https://eprints.nottingham.ac.uk/56309/1/Thesis%20-%20Final%20Corrections.pdf Thomsett, Megan (2019) Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters. PhD thesis, University of Nottingham. terpenes monomers a-pinene polyesters |
| spellingShingle | terpenes monomers a-pinene polyesters Thomsett, Megan Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title | Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title_full | Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title_fullStr | Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title_full_unstemmed | Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title_short | Investigations into the Synthetic Modifications of Terpenes for the Synthesis of Renewable Polyesters |
| title_sort | investigations into the synthetic modifications of terpenes for the synthesis of renewable polyesters |
| topic | terpenes monomers a-pinene polyesters |
| url | https://eprints.nottingham.ac.uk/56309/ |