Macromol. Chem. Phys. 4/2014

Front Cover: Instead of using traditional chemical crosslinking, flexible and rubbery poly(lactic acid) can be created by controlling the crystallization process. The stereo complex crystals formed are the “physical crosslinks”. This slide is used to demonstrate the relative crystallization kinetics and the morphology formed for two chemically identical but physically different co‐crystallizing PLA based blends. Further details can be found in the article by S. R. Rathi, D. Ng, E. B. Coughlin,* S. L. Hsu,* C. S. Golub, G. H. Ling, and M. J. Tzivanis on page 320.