Complex sentence: After the war, he was able to return to Juniata College and obtain his chemistry degree, and went to work with U.S. Steel as a research chemist in Pittsburgh, in physical chemistry in the metallurgical area.
Split into simpler sentences: After the war, he was able to return to Juniata College and obtain his chemistry degree. Then he went to work with U.S. Steel as a research chemist in Pittsburgh, in physical chemistry in the metallurgical area.