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Stephanie Kwolek
(31 Jul 1923 - 18 Jun 2014)
American chemist and inventor who, while a textile chemist at DuPont, invented the polymer named Kevlar. She was seeking a fibre strong enough to replace the steel used in radial tyres, but Kevlar eventually was used in bulletproof jackets and military helmets.
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Science Quotes by Stephanie Kwolek (3 quotes)
[At DuPont,] I was very fortunate that I worked under men who were very much interested in making discoveries and inventions. They were very much interested in what they were doing, and they left me alone. And I was able to experiment on my own, and I found this very stimulating. It appealed to the creative person in me.
— Stephanie Kwolek
From transcript for video interview (2007, published Aug 2012), 'Stephanie Kwolek: Curiosity and the Discovery of Kevlar', in the series Women in Chemistry, on Chemical Heritage Foundation website.
I tell young people to reach for the stars. And I can't think of a greater high than you could possibly get than by inventing something.
— Stephanie Kwolek
From audio on MIT video '1999 Lemelson-MIT Lifetime Achievement Award Winner', on 'Innovative Lives: Stephanie Kwolek and Kevlar, The Wonder Fiber' on the Smithsonian website.
I was working with these very long-chain … extended-chain polymers, where you had a lot of benzene rings in them. … Transforming a polymer solution from a liquid to a fiber requires a process called spinning. … We spun it and it spun beautifully. It [Kevlar] was very strong and very stiff—unlike anything we had made before. I knew that I had made a discovery. I didn’t shout “Eureka!” but I was very excited, as was the whole laboratory excited, and management was excited, because we were looking for something new. Something different. And this was it.
— Stephanie Kwolek
From transcript for video interview (2007, published Aug 2012), 'Stephanie Kwolek: Curiosity and the Discovery of Kevlar', in the series Women in Chemistry, on Chemical Heritage Foundation website.
See also:
- 31 Jul - short biography, births, deaths and events on date of Kwolek's birth.
- Women Inventors, by Jean F. Blashfield. - book suggestion.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
