Rubber Elasticity: Theory and Applications

This lecture delves into the theory of rubber elasticity, focusing on the entropy-driven behavior of rubber materials. Topics covered include the theory of rubber elasticity, the equation of state for elastomers, thermodynamics of elasticity, and the relationship between entropy and retractive force. The lecture also explores the swelling of polymer networks, the modulus of macroscopic networks, and the stress-strain behavior of rubber materials. Additionally, it discusses thermoplastic elastomers, such as styrene-isoprene-styrene and styrene-1,2-butadiene-styrene copolymers, and their applications in thermoplastic elastomers. The molecular basis of rubber elasticity and the behavior of networks or gels absorbing solvent are also examined.