Just after World War II ended, Stephanie Louise Kwolek tucked her new chemistry degree from the Carnegie Institute of Technology under her arm and—because she couldn’t afford medical school—took a research job at DuPont’s textile fibers department in Buffalo. Although she faced many challenges as one of the few women in chemical research, she liked the work so much that she soon dropped her plans to become a doctor. Two decades later she would invent Kevlar, one of the world’s most versatile materials, and along with it a new branch of polymer chemistry.
1960s
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Innovations
