Pre­dict­ing elas­tic­ity

Down to Earth - - LIFESTYLE -

IN WHAT could be a ground­break­ing dis­cov­ery, sci­en­tists have de­vised a way to pre­dict the elas­tic­ity of any poly­mer. A long chain of re­peat­ing mol­e­cules, poly­mers have dis­tinct elas­tic­ity and are used in ob­jects made of rub­ber and plas­tic. Ex­ist­ing meth­ods to cal­cu­late elas­tic­ity as­sume an ideal, de­fect­free net­work in poly­mers, but ma­te­ri­als usu­ally have struc­tural flaws. Re­searchers have now de­vised a method to mea­sure these struc­tural de­fects, which can help in cal­cu­lat­ing the elas­tic­ity of any poly­mer. Science, Septem­ber 16

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