Crystallization kinetics of chain extended poly(L-lactide)s having different molecular structures Omid Yousefzade a,§ *, Javad Jeddi a,b,§ , Lourdes Franco c , Jordi Puiggali c , Hamid Garmabi a * a Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran b Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, USA c Chemical Engineering Department and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, c/Eduard Maristany 10-14, Barcelona E-08019, Spain Email addresses: O.Yousefzade (yousefzade@aut.ac.ir) and H.Garmabi (garmabi@aut.ac.ir). *Authors to whom correspondence may be addressed. § Omid Yousefzade and Javad Jeddi contributed equally to this work. 1