Iowan Invents Nylon: Iowa Time Machine February 28, 1935

Iowa Time Machine ⏰: On February 28, 1935, Iowa chemist Wallace Carothers successfully synthesized nylon, creating the first fully synthetic fiber that would transform everything from clothing to parachutes to industrial machinery.

Wallace Carothers grew up in Des Moines, Iowa, the son of a teacher and commercial manager who valued education and intellectual curiosity. Born in 1896, he excelled in chemistry and earned his doctorate from the University of Illinois before joining the Harvard faculty. In 1928, DuPont Chemical Company lured him away from academia with an unprecedented offer: complete freedom to pursue fundamental research without immediate commercial pressure. The company established a new research division dedicated to polymer chemistry, betting that basic scientific investigation would eventually yield profitable innovations.

Carothers arrived at DuPont's Wilmington laboratories during the depths of the Great Depression, when economic hardship made the pursuit of seemingly impractical research appear almost frivolous to outside observers. Carothers and his team had been experimenting with long-chain molecules, seeking to create synthetic materials that could match or exceed silk's properties. The successful synthesis of polymer 6-6, which would become known as nylon, emerged from their systematic investigation of polyamides. The new fiber possessed remarkable strength, elasticity, and durability. It could be drawn into fine threads suitable for textiles or molded into solid shapes for industrial applications. Carothers filed the patent for his invention.

The material would not reach commercial production until 1938, when DuPont introduced nylon stockings that created an immediate sensation among American consumers. The principles of polymer chemistry that Carothers established enabled the development of countless other synthetic materials, including polyesters, acrylics, and the various plastics that permeate contemporary life. #Iowa #OTD #History #Invention #Technology