Phd Position (8) Tw12 - Department Of Chemical Engineering And Technical Chemistry, Ghent University
PhD Position (8)
- Last application date: 2012-04-30 17:00
- Department: TW12 - Department of Chemical engineering and technical chemistry
- Contract: bepaald
- Occupancy rate: 100%
- Vacancy Type: wp
Model guided design of multi-step one pot synthetic sequences for functional polymer materials.
In this PhD project, the development of multi-step one pot synthetic sequences to synthesize linear, branched and cross-linked polymer materials will be explored using amine-thiol-ene conjugation chemistry. Guided by theoretical calculations and kinetic modeling, the project aims at defining reaction conditions that allow to fully control the polymer microstructure.
‘Click’ chemistry is a powerful tool to make new functional polymer materials with a broad range of applications in medicine, electronics, coatings, etc. To optimize the benefit of ‘click’ chemistry to link polymer molecules together in complex functional architectures, multi-step one pot synthetic sequences have to be envisaged, since they make laborious work-up and purification obsolete. A very promising accelerated protocol for the synthesis of several types of polymeric architecture is shown in the right figure. A thiolactone entity serves as a precursor for thiols (latent functionality) in a one-pot amine-thiol-ene reaction: the thiolactone ring opens upon aminolysis (nucleophilic reaction) and the in situ generated thiol reacts with a double bond (radical, photo-initiated process), already present in the same pot, resolving important issues concerning the instability and availability of thiols. Currently, the very promising synthetic strategy is still in its pioneering stage. A detailed study of the amine-thiol-ene conjugation will allow to further exploit its potential. The obtained insights will enable to define the possibilities and limitations, especially when targeting functional polymer materials with well-defined architectures.
Advisor: Marie-Françoise Reyniers
Funding: Foundation for Scientific Research Flanders (Science and Technology)
PhD Fellowships are available in the following domains:
- Biomass Conversion
- Transient Kinetics
- Metal catalyzed reactions
- Radical Polymerization
- Pyrolyis and Steam cracking
- Computational Fluid Dynamics coupled with kinetics
Typical activities during a 4 year PhD project:
- Experimental acquisition of intrinsic reaction rate data.
- Model construction based on reaction mechanisms and estimation of kinetic parameters by data regression and/or quantum chemical calculations.
- Scale-up of lab data and simulation of industrial processes by developing and implementing reactor models accounting for transport next to reaction. Development and application of Computational Fluid Dynamics models in that context.
- Normal duties will apply, including the preparation of scientific reports and publications and assisting in supervising of MSc students.
Applicants must possess a MSc in Chemical Engineering or related subject and a TOEFL certificate ( minimum score of 580(paper)/92(iBT)/237(computer)) or equivalent. Relevant experience in the area of reactor engineering, kinetics, and/or computational chemistry is strongly recommended. Candidates must have a strong mathematical background and be willing to focus on obtaining quantitative rather than qualitative results. Excellent candidates with a PhD in the above domains and willing to spend between 1 and 3 years at LCT can also apply for a postdoctoral fellowship.
Any additional information can be obtained by contacting Guy B. Marin. Any application should enclose a C.V., a one page justification of your interest and at least two references.
09 264 45 17
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Ghent University - NetherlandsJob description Exploring the potential of microreactors for controlled polymer synthesis Aim The aim of this PhD project is to use microreactor technology (MRT) for the advanced synthesis of polymers
KTH Royal Institute of Technology - SwedenKTH School of Chemical Science and Engineering is now offering a postdoctoral position (scholarship) in Fibre and Polymer Science for a project funded by Tunholmsstiftelse on the modification of (nano