News Chemistry Tear-resistant rubbery materials could pave the way for tougher tires Weak “cross-linkers” inserted into the materials make them harder to tear Tires wear down over time and release tiny plastic particles into the environment, but a new design strategy for rubbery materials could limit this pollution. mseidelch/E+/Getty Images Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Skyler Ware July 7, 2023 at 9:00 am A new material design could reduce pollution where the rubber meets the road. Strategically adding weak points along microscopic chains called polymers actually makes them harder to tear, researchers report in the June 23 Science.