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COLLOIDS AND INTERFACES

CODE 61417
ACADEMIC YEAR 2023/2024
CREDITS
  • 4 cfu during the 3nd year of 8757 CHIMICA E TECNOLOGIE CHIMICHE (L-27) - GENOVA
  • SCIENTIFIC DISCIPLINARY SECTOR CHIM/04
    LANGUAGE Italian
    TEACHING LOCATION
  • GENOVA
  • SEMESTER 1° Semester
    PREREQUISITES
    Prerequisites
    You can take the exam for this unit if you passed the following exam(s):
    • Chemistry and Chemical Technologies 8757 (coorte 2021/2022)
    • MATHEMATICAL INSTITUTIONS 72564
    TEACHING MATERIALS AULAWEB

    AIMS AND CONTENT

    AIMS AND LEARNING OUTCOMES

    A good understanding of the major colloid and surface phenomena; a first grasp of acknowledged theories and frameworks; a simple approach to some important experimental techniques; a basic knowledge of various industrial applications.

    This class contributes to the achievement of the following 2030 ONU Agenda sustainability Goals:

    Goal 4. Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all

    Goal 5. Achieve gender equality and empower all women and girls

    Goal 9. Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation

    Goal 12. Ensure sustainable consumption and production patterns.

    PREREQUISITES

    A good mastery of the major principles and laws of physics and physical chemistry

    TEACHING METHODS

    Lectures

    SYLLABUS/CONTENT

    Introduction (colloid and surface physical chemistry) – Intermolecular forces and electric properties of molecules – Interparticle forces: Van der Waals, electrostatic, steric interactions, total interaction free energy, DLVO theory and colloid stability – Colloidal dispersions: preparation methods; kinetic, rheological, electrical properties; coagulation, reversible flocculation; examples of industrial products –Emulsions and foams: preparation and destruction methods; examples of industrial products – Interfacial phenomena: interfacial tension, Laplace equation, contact angle, Young equation; surfactants, surface activity, Gibbs equation, monomolecular films; examples of industrial processes.

    RECOMMENDED READING/BIBLIOGRAPHY

    J.N. Israelachvili: Intermolecular and Surface Forces, Academic Press

    A.W. Adamson and A.P. Gast: Physical Chemistry of Surfaces, Wiley

    H.J. Butt, K. Graf, M Kappl: Physics and Chemistry of Interfaces, Wiley

    TEACHERS AND EXAM BOARD

    LESSONS

    LESSONS START

    From September 25, 2023

    Class schedule

    All class schedules are posted on the EasyAcademy portal.

    EXAMS

    EXAM DESCRIPTION

    Oral examination

    ASSESSMENT METHODS

    The oral exam is always conducted by two teachers of the School and has a duration of about 1 hour. In this way the commission can verify with high accuracy if the student has reached the learning outcomes.

    The depth and coherence of the knowledge of the most important concepts and equations will be evaluated. Moreover the ability to apply them to simple specific cases will be assessed.