Simulation of conformational properties of end-grafted diblock copolymers
Conformational properties of end-grafted flexible diblock copolymers were studied by using Monte Carlo simulation. The copolymers, XAnBn and XBnAn, are grafted with the end X to a flat surface which attracts monomers A but repulses monomers B. Results show that the blocks A in XAnBn and XBnAn are adsorbed upon the surface at low temperature, and the adsorption of blocks A takes place roughly at the same temperature. However, the conformational size and instantaneous shape of the blocks A and B in XAnBn and XBnAn are different. The possible reasons were discussed and they were interpreted by different properties and grafting locations of the two blocks.