Science, Tech, Math › Science Homopolymer Definition in Chemistry Share Flipboard Email Print This is the chemical structure of the homopolymer polyvinyl chloride. Todd Helmenstine Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated July 08, 2019 A homopolymer is a polymer where every monomer unit (mer) of the chain is the same. Homopolymer Examples Polyvinylchloride (PVC) is a homopolymer consisting of vinyl chloride units. Polypropylene consists of repeating propylene units. In contrast, DNA is a polymer that is not a homopolymer. Different sequences of base pairs are used to encode genetic information.