The Self-aeesmbly Of Complex Block Copolymers With Nanoparticle Confinement

Block copolymers can self-assembly into a variety of ordered structures, which was used in a serious of international frontier fields such as bioscience, high-density storage and light lithography. It turns out to be that block copolymers posses important significance in both theory and practical application. In recently, a large number of synthetic materials such as fiber, plastics, synthetic rubber, coating and adhesive are widely used in the field of production and industry, which make the studies of block copolymer attract more and more attention of the researchers, which is become a hot research topic now. In this paper, we employ the real-space self-consistent field theory to simulate the self-assembly behavior of complex block copolymers.In the first place, we consider about the self-assembly of ABC linear triblock copolymer in bulk and nanoparticles with fixed polymer parameter. In this condition, we obtain alternate columnar structure in bulk and a serious of spherical structures in neutral nanoparticles and nanoparticles with different adsorption. To study the integrated phases, we focused on the factors affecting the formation of these structures, such as the topology of block copolymer, size of confinement space, and different adsorption fields.In the next place, we study the self-assembly behavior of ABC star triblock copolymer confined in nanoparticles. We consider that with fixed polymer parameter, the self-assembly behavior of ABC star triblock copolymer in two types of adsorption fields. We change the self-assembly environment to obtain many novel structures which can not obtained in the bulk, such as the size of confinement nanoparticle, the strength of adsorption field. At last, we analysis the obtained structures, and compare them with the results about linear triblock copolymer. Some useful rules are obtained which may provide guidance to synthesis of block copolymers.