3 results
Melissa and Jam explain how hairspray combines a propellant, solvent and polymers to produce an aerosol that holds hair in place. The episode follows the formation of a fine mist, the behaviour of the polymer film and the formulation trade-offs involved, then compares hairspray with gels and mousses.
Hosted by Melissa, Jam
Published Jul 9, 2026 · 1 h 2 min
Melissa and Jam examine how erasers remove graphite from paper. The episode connects the structure of graphite with the polymers and physical interactions that let an eraser lift a mark, contrasting absorption and adsorption and discussing what makes an everyday material effective for this purpose.
Hosted by Melissa, Jam
Published Jun 4, 2026
Melissa and Jam recount Stephanie Kwolek’s discovery of Kevlar and explain the polymer chemistry behind its strength. The discussion covers rigid aromatic structures, hydrogen bonding and the organization of polymer chains into strong fibres. It connects these molecular features with protective equipment and other applications.
Hosted by Melissa, Jam
Published May 7, 2026 · 48 min