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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.

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

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
title: n.a.
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surname: n.a.
function: n.a.
email: 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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