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dc.contributor.authorKwiecień, Iwona
dc.contributor.authorAdamus, Grazyna
dc.contributor.authorJiang, Guozhan
dc.contributor.authorRadecka, Iza
dc.contributor.authorBaldwin, Timothy C.
dc.contributor.authorKhan, Habib R.
dc.contributor.authorJohnston, Brian
dc.contributor.authorPennetta, Valentina
dc.contributor.authorHill, David
dc.contributor.authorBretz, Inna
dc.contributor.authorKowalczuk, Marek M.
dc.date.accessioned2018-01-08T15:01:34Z
dc.date.available2018-01-08T15:01:34Z
dc.date.issued2017-12-20
dc.identifier.citationKwiecien I., Adamus G., Jiang G., Radecka I., Baldwin TC., Khan HR., Johnston B., Pennetta V., Hill D., Bretz I., Kowalczuk M. (2017) 'Biodegradable PBAT/PLA blend with bioactive MCPA-PHBV conjugate suppresses weed growth', Biomacromolecules, 19 (2) pp. 511–520 doi: 10.1021/acs.biomac.7b01636
dc.identifier.issn1525-7797
dc.identifier.doi10.1021/acs.biomac.7b01636
dc.identifier.urihttp://hdl.handle.net/2436/621024
dc.descriptionThis document is confidential and is proprietary to the American Chemical Society and its authors. Do not copy or disclose without written permission.
dc.description.abstractThe herbicide 2-methyl-4-chlorophenoxyacetic acid (MCPA) conjugated with poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was prepared via a melt transesterification route. The resultant bioactive oligomer was then mixed with a blend of polylactide (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) with different loadings; to manufacture films to be used as a bioactive, biodegradable mulch to deliver the herbicide to target broadleaf weed species. The biological targeting of the MCPA-PHBV conjugate in the mulch film was investigated under glasshouse conditions using faba bean (Vicia faba) as a selective (non-target) model crop species having broadleaf morphology. The presence of the MCPA-PHBV conjugate in the biodegradable PBTA/PLA blend was shown to completely suppress the growth of broadleaf weed species, whilst displaying only a mild effect on the growth of the model crop. The degradation of the mulch film under glasshouse conditions was quite slow. The release of the MCPA-PHBV during this process was detected using NMR, GPC, EDS and DSC analyses, indicating that the majority of the MCPA diffused out after MCPA-PHBV conjugate bond scission. These data provide a strong “proof of concept” and show that this biodegradable, bioactive film is a good candidate for future field applications and may be of wide agricultural applicability.
dc.description.sponsorshipThis work was funded by the Research Investment Fund, University of Wolverhampton (Wolverhampton, UK).
dc.language.isoen
dc.publisherACS Paragon Plus Environment
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acs.biomac.7b01636
dc.subjectMCPA conjugate
dc.subjectpolyhydroxyalkanoates
dc.subjectbiodegradability
dc.subjectPBAT
dc.subjectmulch
dc.titleBiodegradable PBAT/PLA blend with bioactive MCPA-PHBV conjugate suppresses weed growth
dc.typeJournal article
dc.identifier.journalBiomacromolecules
dc.date.accepted2017-12-20
rioxxterms.funderUniversity of Wolverhampton
rioxxterms.identifier.project080118IR
rioxxterms.versionAM
rioxxterms.licenseref.urihttps://creativecommons.org/CC BY-NC-ND 4.0
rioxxterms.licenseref.startdate2018-12-19
dc.source.volume19
dc.source.issue2
dc.source.beginpage511
dc.source.endpage520
refterms.dateFCD2018-10-19T09:28:38Z
refterms.versionFCDAM
html.description.abstractThe herbicide 2-methyl-4-chlorophenoxyacetic acid (MCPA) conjugated with poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was prepared via a melt transesterification route. The resultant bioactive oligomer was then mixed with a blend of polylactide (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) with different loadings; to manufacture films to be used as a bioactive, biodegradable mulch to deliver the herbicide to target broadleaf weed species. The biological targeting of the MCPA-PHBV conjugate in the mulch film was investigated under glasshouse conditions using faba bean (Vicia faba) as a selective (non-target) model crop species having broadleaf morphology. The presence of the MCPA-PHBV conjugate in the biodegradable PBTA/PLA blend was shown to completely suppress the growth of broadleaf weed species, whilst displaying only a mild effect on the growth of the model crop. The degradation of the mulch film under glasshouse conditions was quite slow. The release of the MCPA-PHBV during this process was detected using NMR, GPC, EDS and DSC analyses, indicating that the majority of the MCPA diffused out after MCPA-PHBV conjugate bond scission. These data provide a strong “proof of concept” and show that this biodegradable, bioactive film is a good candidate for future field applications and may be of wide agricultural applicability.


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