• Level of study

    BAC +4

  • ECTS

    2 credits

  • Component

    Faculty of Science

Description

This course allows the acquisition of basic knowledge and transversal skills in the field of colloids and interfaces, common to the different courses of the Master Chemistry (Chemistry of Materials, Separative Chemistry, Materials and Processes, ICAP Cosmetics Engineering, Chemistry of Biomolecules). It is also offered to international students entering the SFRI program at the University of Montpellier where the teaching is given in English. An introductory presentation on the basic notions and concepts will allow to discover and better understand the main physicochemical properties of colloidal dispersions, associative colloids, and macromolecular solutions, as well as the parameters and phenomena governing the stability in colloidal dispersions and mixed solution-colloid systems. Then, an interdisciplinary practical teaching based on the principle of the flipped classroom will be proposed to help students build and deepen their knowledge through an individual and collective analysis of the various applications of colloidal and interfacial phenomena and systems.

Hourly volumes* :

CM : 7

TD : 13

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Objectives

1) Understand the basic concepts and notions related to multi-component systems based on the size of dissolved or dispersed substances;

2) Know how to determine the main mechanisms and factors governing the formulation and stabilization of colloidal dispersions, organized supramolecular systems of amphiphiles and polymers in aqueous solution;

3) Know how to identify the colloidal and interfacial mechanisms involved in concrete applications.

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Necessary pre-requisites

Knowledge of the structure and properties of organic and inorganic molecules and ions, as well as intermolecular interactions; basic knowledge of classical thermodynamics - main thermodynamic quantities (L level) 

Basic knowledge of solution chemistry and electrochemistry (L level) 

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Knowledge control

Continuous assessment (100%)

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Syllabus

1) Generalities on dispersed systems and interfacial mechanisms (7 H CM):

basic notions and concepts related to multi-component systems as a function of the size of the dissolved or dispersed substances (molecular dispersion vs. colloidal dispersion, colloidal size, emulsions and colloidal suspensions, organized supramolecular systems of amphiphiles and polymers in aqueous solution, example of colloids in speciation diagrams) ; control of colloidal stability (surface energy and interfacial tension, matter division work - examples of calculation, main types of interaction in colloidal systems, Brownian motions, metastability, adsorption from solutions, ionic double layer, DLVO model, stability by electrostatic repulsions and steric stability, flocculation, coagulation, coalescence, Ostwald ripening, micellar solubilization) ; properties of colloidal systems (Tyndall effect, osmotic pressure, electrophoresis, hydrophilic-lipophilic balance, viscosity and multiphase flows) 

Supporting documents available online(entirely in English): (1) description of the supposedly known prerequisites and list of documents to be consulted for a refresher course, (2) PowerPoint presentation of the course, (3) self-assessment MCQs, (4) videos of detailed corrections of the MCQ questions

 

2) Examples of applications of colloidal mechanisms and systems (13 H TD in flipped classroom - the level of detail varies according to the specificity of the courses) :

Block 1: Speciation diagrams of the elements of choice in aqueous solution in the presence of colloids (hydroxides, silicates)

Block 2 : Water purification by ultrafiltration and reverse osmosis processes

Block 3 : Formulation of cosmetic emulsions/creams + introduction to rheology

Block 4 : Elaboration of mineral oxides by sol-gel process + sintering

Block 5 : Suspension and emulsion polymerization + substitution reactions in micellar medium

Block 6 : Principles of drug delivery by liposomes, emulsions, porous (nano)particles

 

Supporting documents available online(entirely in English): list of skills to be acquired, selection of popular publications and scientific articles

 

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Additional information

Administrative contact(s):

 

Secretariat Master Chemistry

https://master-chimie.edu.umontpellier.fr/

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