What chemical process did John Cadotte of the FilmTec Corporation develop to create membranes with high flux and low salt passage?
Answer
Interfacial polymerization
John Cadotte revolutionized membrane technology by perfecting a process known as interfacial polymerization. By reacting m-phenylenediamine and trimesoyl chloride, he was able to create superior membranes that achieved a critical balance of high water flux and low salt passage. This specific chemical technique became the foundational process for manufacturing nearly all commercial reverse osmosis membranes used in modern applications, overcoming earlier limitations related to fluid flow and salt rejection.
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