INVESTIGADORES
VILLAR Marcelo Armando
congresos y reuniones científicas
Título:
Buckling in Block Copolymers Membranes
Autor/es:
A.D. PEZZUTTI; M.A VILLAR; D.A. VEGA
Lugar:
Los Cocos, Cordoba
Reunión:
Congreso; V Simposio Binacional de Polímeros Argentino-Chileno, ARCHIPOL´09I, VIII Simposio Argentino de Polímeros, SAP VIII y IX Simposio Chileno de Química y Fisicoquímica de Polímeros, CHIPOL IX; 2009
Resumen:
We examined phase separation in a block copolymer membrane using a coupled composition deformation phase field method. In the hexagonal the topological deefcts have a strong effect in both, the shape of membrane and the equilibrium state of the pattern. Defects such as dislocations and disclinations can cause a thin film to spontaneously bend or buckle. While disclinations can cause the film to buckle into either suddle (negative disclinations) or a conical (positive disclinations) shapes, the nature of the bending of the membrane depends on the orientation of the Burgers vector.