Expert Details

Expert in R&D Project Design, Paper Coatings, Additives & Nanocomposite Materials, Colloid Chemistry, Polymers

Expert ID: 724606 South Africa

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He is actively leading researches in the field of controlled free-radical polymerization mediated by Reversible Activation-Fragmentation chain Transfer (RAFT) in homogenous and heterogeneous media. The uniqueness of his work lies in the combination of modern methods of controlled free-radical polymerization with nanotechnologies, which allows preparing new polymer materials and nanocomposites with tailored properties designed for demanding applications.
Typical potential applications are paper barrier coatings, materials with improved thermal stability and enhanced mechanical properties.

The preparation of water-based polymer colloidal suspensions (latices) with unusual compositions and morphologies is one of his major current centers of interest. Two typical examples are the preparation of magnetic polymer colloidal composite nanoparticles by free-radical polymerization in emulsion and in suspension, or the preparation of polymer-clay nanocomposite by free-radical polymerization in emulsion and in dispersion.
Furthermore, he has developed a new class of polymerizable surfactants, studied their self-assembly behavior in diluted aqueous media, determined their lyotropic liquid crystalline properties and phase diagrams in concentrated solutions.
One of his latest researches has successfully developed organic compounds hybrid between surfactant and reversible transfer agent (RAFT) tailored for the preparation of polymer-inorganic particle nanocomposites with controlled architectures and properties.

He is developing innovative barrier coatings for the paperboard packaging industry. Gas, vapours and moisture barrier properties are undoubtedly the most important characteristic demanded by the food packaging industry.
He is also designing new wet and Expert-strength resins for the paper board and fluting industry. The related R&D projects involve industrial methods of polymer synthesis and/or polymer modification.


He has thoroughly published in the field of polymer-clay nanocomposites (PCNs). He has not only proposed innovative methods to prepare such hybrid polymers in various media, but he has also established correlations between morphology and properties of PCNs. Such efforts were carried out because a sharp understanding of relations existing between structure and properties will allow chemical engineering tailoring polymer nanocomposite material with desired properties for specific applications.

He has published in the field of ultra-low surface energy fluorinated polymer in connection with his work on establishing relationships between molecular structure and surface properties of perfluoroalkylated acrylic (co)polymers. This work involved the preparation of novel fluorinated copolymer, their structural study, and the way their self-assembly behaviour affect their surface properties.

He is a privileged consultant for a paper making company to design R&D projects for product development for niche markets. He has contributed to the success of a R&D project for autocleaning filtration membrane.He is consulting on a regular base for online technical support.

Education

Year Degree Subject Institution
Year: 2002 Degree: PhD Subject: Polymer Chemistry Institution: University of Montpellier, France
Year: 1998 Degree: MSc Subject: Polymer Chemistry Institution: University of Montpellier, France
Year: 1997 Degree: Hsc Subject: Organic Chemistry Institution: University of Toulouse

Work History

Years Employer Title Department Responsibilities
Years: 2003 to 2005 Employer: MONDI (Anglo american group) Title: R&D Researcher/Manager Department: R&D Responsibilities: He is designing and managing industrial AND academic projects related to nanocomposite materials, paper coatings, additives for paper making.
Years: 2003 to 2005 Employer: University of Stellenbosch (South-Africa) Title: Post-Doc Department: Departement of Polymer Science Responsibilities: He has managed research projects in the field of polymer nanocomposites and surfactant sciences.

International Experience

Years Country / Region Summary
Years: 2003 to Present Country / Region: South-Africa Summary: Post-Doc, then R&D researcher/Manager for MONDI.

Additional Experience

Marketing Experience
R&D related to additives for paper making.
Other Relevant Experience
Polymer-clay nanocomposites: preparation and tailoring for specific applications.
Paper coating R&D.
Wet strength resin R&D.

Language Skills

Language Proficiency
French French is his mother tongue.

Fields of Expertise

acrylic polymerization, chain transfer agent, free radical polymerization, latex emulsion, polymer, polymer chemistry, polymer science, polymerization, synthetic polymer chemistry, colloid, colloid and interface chemistry, colloidal suspension, emulsion polymerization, lyotropic liquid crystal material, surfactant, surfactant chemistry, moisture-barrier packaging material, packaging paper, papermaking polymer, wet-strength paper, montmorillonite, nanocomposite, nanotechnology, organoclay, polymer-magnetite nanocomposite, clay exfoliation, polymer-clay nanocomposite, exfoliated pcn, intercalated pcn, polymer surface chemistry, fiber surface modification, cellulose chemistry, free radical initiator, fluoropolymer coating material, fluoropolymer research, barrier polymer, antiblocking agent, synthetic thickener, moisture permeability, paint rheology, oxygen barrier, moisture vapor transmission rate, emulsion coating material, water vapor transmission, paper coating material, coated paper, paper additive, emulsion polymer, polymer thermal property, polymer viscoelastic property, contact angle measurement, advanced composite, interfacial tension measurement, interfacial tension, surface tension measurement, paper coating formulation, size-exclusion chromatography, initiation, viscoelastic material mechanical property, dynamic mechanical thermal analysis, water vapor barrier packaging material, adsorption, crosslinking agent, surface modifier, moisture barrier material, high-performance liquid chromatography, oxygen permeability, rheological property, liquid rheological measurement, rheological measurement, fluid rheology measurement, fluoropolymer, free radical catalyst, viscoelasticity, thermomechanical analysis, thermogravimetric analysis, surface tension, surface chemistry, rheometer, rheology, polymer rheology, paper corrugating, micelle, gel permeation chromatography, flocculating agent, corrugating, cation exchange

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