tetramethylpropanediamine (tmpda): the unsung hero of polyurethane chemistry by dr. leo chen, industrial chemist & foam enthusiast ☕🧪 let’s talk about a molecule that doesn’t show up on red carpets but deserves a standing ovation in every polyurethane plant: tetramethylpropanediamine, or tmpda for short — because let’s be honest, saying “tetra-methyl-propane-dia-mine” five times fast is...

