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DUAL-PHOSCAT TERMINATED

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

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 Outcomes and results

 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.

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

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.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.
 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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