CAJ | 학술논문

利用格子自洽场模型,模拟了棒-棒二嵌段共聚物熔体系统的自组装行为,并与线-棒二嵌段共聚物系统性质进行了对比.结果表明,棒-棒二嵌段共聚物系统的有序无序转变临界点低于线-棒二嵌段共聚物系统的相变临界点.通过模拟计算,发现薄层交叠柱状相,柱状相,层状相和Z形层状相4种稳定的有序形貌.薄层交叠柱状相和柱状相仅在有序无序转变曲线的边缘位置出现,层状相也仅存在于有序无序转变临界点上面的一小块区域内,而稳定的Z形层状结构则占据了相图中较强相互作用的大部分区域.
이용격자자흡장모형,모의료봉-봉이감단공취물용체계통적자조장행위,병여선-봉이감단공취물계통성질진행료대비.결과표명,봉-봉이감단공취물계통적유서무서전변림계점저우선-봉이감단공취물계통적상변림계점.통과모의계산,발현박층교첩주상상,주상상,층상상화Z형층상상4충은정적유서형모.박층교첩주상상화주상상부재유서무서전변곡선적변연위치출현,층상상야부존재우유서무서전변림계점상면적일소괴구역내,이은정적Z형층상결구칙점거료상도중교강상호작용적대부분구역.
The self-assemble behavior of the rod-rod diblock copolymers was studied by means of self-consistent field lattice model, and the results were compared with the coil-rod diblock copolymers. It is shown that the order-disorder transition point of rod-rod diblock copolymers is lower than that of coil-rod diblock copolymers. Four stable structures are obtained, i.e., overlapping cylinders, cylinders, lamellae and zigzag lamellae. The overlapping cylinders and cylinders occur only in the region near the order-disorder transition curve. Lamellae are observed in the region above the order-disorder transition point. However, the stable zigzag lamella structure occupies a big region corresponding to the strong interaction between two different components of diblock copolymers.