PRELIMINARY PROGRAM AND COURSE OUTLINE
Monday, September 6, 2010
13.30-14.30 Registration
14.30-16.30 Features of Emulsion Polymerization (Prof. José M. Asua, POLYMAT)
Processes occurring in emulsion polymerization. Similarities and differences with other polymerization techniques in dispersed media (miniemulsion, microemulsion and dispersion polymerization). Reactors. Applications of polymer dispersions.
16.30- 17.00 Coffee Break
17.00-18.00 Seminar on Kinetic Measurements (Prof. María J. Barandiaran, POLYMAT)
How to run an experiment. Determination of kinetic measurements from experiments.
Tuesday, September 7, 2010
8.30-10.30 Kinetics of Emulsion Polymerization (Prof. José M. Asua, POLYMAT)
Factors affecting polymerization rate. Radical entry: processes involved; effects of water solubility of monomers and initiators, characteristics of the surface of the polymer particles. Radicals exit: processes involved; factors affecting radical exit (water solubility of monomers and initiators, particle size, characteristics of the surface of the polymer particles). Radical termination. Average number of radicals/particle. Monomer partitioning: thermodynamically controlled systems; mass transfer limitations.
10.30-11.00 Coffee Break
11.00-13.00 Stability of Polymer Colloids (Prof. José M. Asua, POLYMAT)
Colloidal stability. Mechanisms affecting dispersion stability. Electrostatic stabilization. Overcharging. Steric stabilization. Total potential energy of interaction. Flocculation of systems sterically stabilized. Electrosteric stabilization. Aggregation kinetics.
13.00-14.30 Lunch
14.30-15.30 Particle Nucleation and Particle Size Distribution (Prof. María J. Barandiaran, POLYMAT)
Description of the mechanisms for particle nucleation. Particle size distribution. Effect of the formulation and process conditions.
15.30-16.30 Miniemulsion Polymerization (Dr. Monika Goikoetxea, POLYMAT)
Scientific basis for the preparation of monomer miniemulsions: homogenization; thermodynamic and kinetic stabilization. Effect of preparation conditions and of the miniemulsion formulation on the polymerization. Applications.
16:30-17:30 Coffee Break
17.00-18.00 Visit to POLYMAT laboratories
21.00 Conference dinner
Wednesday, September 8, 2010
09.00-11.00 Molecular Weight Distribution (Prof. José R. Leiza, POLYMAT)
Introduction. MWD in linear polymerization: Rigorous modelling compartmentalization, MWD for a 0-1 system. MWD in non-linear systems: computation of sol MWD and gel content. Numerical and experimental examples.
11.00-11.30 Coffee Break
11.30-12.30 Particle Morphology (Prof. José M. Asua, POLYMAT))
Thermodynamic and kinetic aspects for particle morphology control.
12.30-13.30 Latex Rheology (Prof. José M. Asua, POLYMAT)
Key aspects affecting the viscosity of waterbone polymer dispersions. Equations for dispersion viscosity Thickeners.
13.30-15.00 Lunch
15.00-17.00 Advanced Research Topics: Bases and Applications of CFRP in Dispersed Media (Prof. Bernadette Charleux. CNRS, Laboratoire de Chimie et Procédés de Polymérisation)
Bases and applications of controlled/living radical polymerisations (CFRP) carried out in the presence of water. Challenges for adapting CFRP to water dispersions. Emphasis on future opportunities and open issues.
17.00-17.30 Coffee Break
17.30-18.30 Seminar on Latex Characterization (Prof. José R. Leiza, POLYMAT)
Particle size distribution. Molecular weight distribution. Gel content.
Thursday, September 9, 2010
9.00-10.30 Emulsion Polymerization Reactors (I) (Dr. María Paulis, POLYMAT)
Reactor types. Reactor equipment for mixing. Power consumption. Agitation requirements for emulsion polymerization. Mass transfer limitations. Heat transfer. Predicting the performance of emulsion polymerization reactors: Mass, energy and population balances. Evolution of characteristics in the different operation modes.
10.30-11.00 Coffee Break
11.00-12.00 Emulsion Polymerization Reactors (II) (Dr. María Paulis, POLYMAT)
Determination of safety parameters. Scale up. Residual monomer removal: devolatilization and postpolymerization.
12.00-13.00 On-line Monitoring (Prof. José R. Leiza, POLYMAT)
Sensor selection. Latex gas chromatography. Head-Space gas chromatography. Densimetry. Ultrasound. Spectroscopic techniques. Reaction calorimetry. Raman vs calorimetry. Experimental results.
13.00-14.30 Lunch
14.30-15.30 Control of Emulsion Polymerization Reactors (Prof. José R. Leiza, POLYMAT)
Open-loop and close-loop strategies. Close-loop for linear polymers: Optimal trajectories; Examples of safe optimal control of composition and MWD; Final property control. Unsolved issues in closed-loop control.
15.30-16.00 Coffee Break
16.00-18.00 Waterborne Polymer/Inorganic Hybrids (Dr. E. Bourgeat-Lami, CNRS, Laboratoire de Chimie et Procédés de Polymérisation)
Overview of the basic principles and main synthetic procedures involved in the synthesis of organic/inorganic colloid through heterophase polymerization. Recent advances on the control of particles morphology and polymerization kinetics. Typical examples including the incorporation of titanium dioxide, silica, magnetic particles and clay colloids into polymer particles.
Friday, September 10, 2010
8.30-10.30 Film Formation of Waterborne Coatings (Prof. Joseph L. Keddie, University of Surrey)
Stages of film formation: drying, particle deformation and interdiffusion. Fundamental driving forces for particle coalescence. Introduction to key analytical techniques and review of experimental results. Effects of surfactant, pigment and particle nanostructure on film formation.
10.30-11.00 Coffee Break
11.00-13.00 Properties of Waterborne Pressure-Sensitive-Adhesives (Dr. Costantino Creton, École Supérieure de Physique et Chimie Industrielles).
General principles governing adhesion of PSA and application to acrylic waterborne systems. Relationship between monomer composition and molecular weight and final film properties. Role of particle size and particle structure. Effect of acrylic acid and gel fraction on deformation and adhesive properties of the dry film.
13.00 End of the course.