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DUAL-PHOSCAT TERMINATED

Multi-functional DUAL PHOSphorus-based organoCATalysts for stereoselective ring-opening polymerisation

Total Cost €

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EC-Contrib. €

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Partnership

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 DUAL-PHOSCAT project word cloud

Explore the words cloud of the DUAL-PHOSCAT project. It provides you a very rough idea of what is the project "DUAL-PHOSCAT" about.

reported    stereocontrolled    stability    cyclic    strategy    turn    residual    phb    catalysts    organocatalysed    sensitive    plastics    amine    inventive    environment    productivities    architectures    contaminates    finely    stereocontrol    assembled    demographic    thioureas    poly    organometallic    pla    efficient    free    acids    bind    proposes    polymerisation    dual    action    polyesters    raw    few    context    butyrolactone    molecular    opening    phosphoric    line    synthesis    tunable    preparation    polylactide    linkers    beta    tuned    efficiency    combining    resource    molecules    precise    lactide    catalyst    oganocatalysts    isotactic    rop    organocatalysts    self    phosphorus    esters    packaging    overcome    initiators    alternative    ring    health    tailor    tactic    toxic    climate    species    weight    date    petroleum    stereoregular    rac    biodegradable    industrially    chiral    stepwise    polymers    phoscat    produces    metal    hydroxybutyrate    fibers    organocatalyst    combinatorial    stereoselectivity    green    materials    biomedical    stereocomplex    productivity    levels    disciplinary   

Project "DUAL-PHOSCAT" data sheet

The following table provides information about the project.

Coordinator
THE UNIVERSITY OF BIRMINGHAM 

Organization address
address: Edgbaston
city: BIRMINGHAM
postcode: B15 2TT
website: www.bham.ac.uk

contact info
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surname: n.a.
function: n.a.
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 Coordinator Country United Kingdom [UK]
 Total cost 195˙454 €
 EC max contribution 195˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-CAR
 Starting year 2017
 Duration (year-month-day) from 2017-08-01   to  2019-07-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF BIRMINGHAM UK (BIRMINGHAM) coordinator 130˙303.00
2    THE UNIVERSITY OF WARWICK UK (COVENTRY) participant 65˙151.00

Map

 Project objective

The stereocontrolled ring-opening polymerisation (ROP) of chiral cyclic esters for the preparation of biodegradable polymers with precise and finely-tuned properties remains a research challenge. Only Few catalysts/initiators have been reported to produce stereoregular high molecular weight polymers; most of them being highly sensitive and/or toxic organometallic species. Organocatalysed ROP produces polymers that are free of residual metal contaminates but to date, does not allow high productivities with high levels of stereocontrol. In this context, the multi-disciplinary proposal DUAL-PHOSCAT proposes to develop chiral tunable dual phosphorus-based organocatalysts to overcome these challenges. For this, a stepwise-synthesis strategy to tailor the organocatalyst architectures and an inventive combinatorial approach using self-assembled oganocatalysts will be investigated. The stepwise synthesis will bind together using chiral linkers, chiral phosphorus-based molecules and chiral thioureas molecules.The self-assembled dual organocatalysts will be obtained combining chiral amine-thioureas and chiral phosphoric acids. These systems will be investigated for the ROP of rac-lactide and rac-beta-butyrolactone. The proposed catalysts enable great advances in the preparation of isotactic polylactide (PLA) stereocomplex and highly tactic poly-3-hydroxybutyrate (PHB) in terms of catalyst stability, productivity, activity and stereoselectivity, in turn making these catalysts efficient green alternative to sensitive and /or toxic organometallic initiators for the synthesis of metal-free highly stereoregular polyesters under industrially-relevant conditions. The PLA and PHB obtained will find potential applications in packaging and fibers (as green alternative to petroleum-based plastics) or as biomedical devices that is in line with the H2020 programme (e.g. Climate action, environment, resource efficiency and raw materials and Health, Demographic and well-being).

 Publications

year authors and title journal last update
List of publications.
2018 Beste Orhan, Mathieu J.-L. Tschan, Anne-Laure Wirotius, Andrew P. Dove, Olivier Coulembier, Daniel Taton
Isoselective Ring-Opening Polymerization of rac -Lactide from Chiral Takemoto’s Organocatalysts: Elucidation of Stereocontrol
published pages: 1413-1419, ISSN: 2161-1653, DOI: 10.1021/acsmacrolett.8b00852
ACS Macro Letters 7/12 2019-03-11

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