Crystallization and stereocomplexation behavior of poly(D- and L-lactide)-b-poly(N,N-dimethylamino-2-ethyl methacrylate) block copolymers (pages 1397–1409)
Rose Mary Michell, Alejandro J. Müller, Mariya Spasova, Philippe Dubois, Stefano Burattini, Barnaby W. Greenland, Ian W. Hamley, Daniel Hermida-Merino, Nicolas Cheval and Amir Fahmi
Article first published online: 3 AUG 2011 | DOI: 10.1002/polb.22323
The crystallization, morphology, and stereocomplexation of amphiphilic poly(D-lactide)-b-poly(N,N-dimethylamino-2-ethyl methacrylate) (PDLA-b-PDMAEMA) and poly(L-lactide)-b-poly(N,N-dimethylamino-2-ethyl methacrylate) (PLLA-b-PDMAEMA) copolymers were studied and compared to those of the corresponding poly(lactide) homopolymers. The crystallization kinetics of the PLA blocks was retarded by the presence of the PDMAEMA block. The melting points of PLDA/PLLA and PLA/PLA-b-PDMAEMA stereocomplexes were higher than those formed by copolymer mixtures indicating that the PDMAEMA block is influencing the stability of the stereocomplex structures.