MSE412
Polymeric Materials
The synthesis, characterization, microstructure, rheology and properties of polymer materials. Polymers in solution and in the liquid-crystalline, crystalline and glassy states. Engineering and design properties including viscoelasticity, yielding and fracture. Forming and processing methods. Recycling and environmental issues.
Course Objectives
- To provide students with an elementary understanding of the synthesis and characterization of polymers
- To teach students current knowledge of the relationship between polymer solid structure and properties.
- To teach students basic knowledge about polymeric behavior so that they can make informed decisions on how to choose an appropriate material in an application.
- To teach viscoelastic behavior and their temperature dependence, and concepts of time-temperature equivalence in various viscoelastic regimes.
- To provide students with basic knowledge about the mechanical behavior of polymers so that they can make simple predictions for design.
- To teach students current knowledge about processing techniques and how they influence the properties of polymers.
Course Outcomes
- To provide students with an elementary understanding of the synthesis and characterization of polymers
- To teach students current knowledge of the relationship between polymer solid structure and properties.
- To teach students basic knowledge about polymeric behavior so that they can make informed decisions on how to choose an appropriate material in an application.
- To teach viscoelastic behavior and their temperature dependence, and concepts of time-temperature equivalence in various viscoelastic regimes.
- To provide students with basic knowledge about the mechanical behavior of polymers so that they can make simple predictions for design.
- To teach students current knowledge about processing techniques and how they influence the properties of polymers.
Assessment Tools
- In-class closed book exams test all objectives for individual students.
- Weekly problem sets test all objectives under less time pressure and with the possibility of student collaboration.
Course Topics
- Polymer synthesis: including addition, chain growth, network formation, and copolymers.
- Molecular structure and architecture: tacticity, branching, networks, copolymers.
- Molecular weight distribution.
- Rotational isomeric states, chain configuration in dilute solutions and condensed states.
- Characterization of molecular wt. and distribution: light scattering, osmometry, intrinsic viscosity, gel permeation chromatography.
- Solidification: glass formation, crystallization, changes in thermal, physical, and mechanical properties.
- Structure and morphology of the condensed states: melt, liquid crystalline, glass, spherulites, alloys, multicomponent materials, processing effects. Thermal effects of rheological behavior. Time temperature equivalence, WLF equation, Arrhenius behavior.
- Mechanical behavior of solids: viscoelasticity, Boltzman superposition principle, failure behavior and criteria, design considerations.
- Multicomponent systems: strengthening, toughening, alloys and blends, other additives.
- Forming and shaping: injection molding, blow molding, sheet forming, film forming. Effect of processing on structure and properties.
- Material selection and design considerations.