Polymer Chain with and without Fluorine (IMAGE) Moscow Institute of Physics and Technology Caption The structure of a repeating unit in the polymer chain without fluorine (left) and after fluorination (right). Credit Elena Khavina/MIPT Press Office and the researchers Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.