The course is aimed to provide an overview on the formulations chemistry through the recall of basic knowledge, the study of preparation methods and experimental techniques of investigation and discussion of industrial practice. Particular attention will be paid to colloidal systems as an essential component in the formulation technology for advanced industrial applications.
Knowledge of properties, methods of preparation and main characterization techniques of different types of colloids and mono- / multi-layers. Ability to relate structure and properties for different molecular architectures, providing specific examples of applications in various application fields.
Traditional lectures, sometimes accompanied with specific exercises by the teacher.
Recalls on the chemistry of formulations: areas of application and industrial relevance.
Recalls on the science of colloids and surfaces: characteristics and role in the chemistry of formulations.
Colloids: molecular, structural and electronic properties. Quantum confinement effects and their importance in conditioning the properties of the matter at the nanoscale level (optical, magnetic, mechanical properties and reactivity).
Transport properties of colloidal systems: diffusion, sedimentation and membrane equilibria (osmotic pressure, Donnan effect, dialysis processes). Examples of application on biological macromolecules.
Rheological properties of colloidal systems: review on Newtonian and ÂÂÂÂÂ non-Newtonian fluids (plastic, pseudo-plastic, dilatant fluids). Einstein's theory on ÂÂÂÂÂ viscosity of the dispersions. Thixotropy and anti-thixotropy. Rheometers and viscometers. Examples of applications for cosmetic and food industries.
Association Colloids: general properties, critical micelle concentration, thermodynamics and kinetics of micellization. Structural models for micelles dispersed in water and definition of the corresponding structural parameters. Solubilizing, detergent and catalytic properties of micelles and their applications. Reverse micelles, liposomes and lyotropic liquid crystals: structure, properties and applications.
Adsorption from solution and formation of mono-and multi-layers: self-assembled monolayers on solid substrates (SAM): structure, properties and methods of preparation on 2D- and 3D-surfaces. Langmuir-Blodgett films: structure and properties. Examples of applications of adsorbed mono-and multi-layers.
“Principles of colloid and surface chemistry”, P:C: Hiemenz, R. Rajagopalan, 3rd Edition, CRC press, Taylor & Francis Group (1997)
“Kirk-Othemer Encyclopedia of Chemical Technology”, J. I. Kroschwitz, M. howe-Grant, Eds., John Wiley & Sons (1996).
Ricevimento: Every day by appointment.
MARINA ALLOISIO (President)
CAMILLA COSTA (President)
ALDO BOTTINO
ORIETTA MONTICELLI
MASSIMO OTTONELLI
See information on the official website of the course.
Oral
Goal of the assessment is to verify the mastery and understanding of the topics of the course by the student, as well as its ability to apply theoretical concepts to real situations.
