中文摘要：

利用自洽场方法研究两嵌段共聚物受限于接枝均聚物链（聚合物刷）圆孔中的自组装相形貌．研究表明，当圆孔内径一定时，嵌段比f和聚合物刷C的体积分数^-φC是调控嵌段共聚物相形貌的主要因素，聚合物刷的弹性熵也起着重要作用．当f=0．7时，在聚合物刷的浸润下，贴近刷表面处AB嵌段共聚物构成环层状结构，随着^-φC的减小这种结构会周而复始地出现．当f处于0．3～0．7之间的非对称状态时，体系易形成外环内柱的相结构．当f=0．35时，体系可以出现一种新颖的复杂结构——最内层为柱状结构，次内层为环层状结构，次外层呈环形排列的柱状结构，最外层又是环层状结构，即环柱交替结构．给出了以f和嵌段共聚物体积分数^-φAB作为参数空间的嵌段共聚物结构相图．

英文摘要：

Using self-consistent field calculation, the new equilibrium morphology of a diblock copolymer melt confined in a brush- covered cylindrical nanopore can be found. The morphology is formed as a function of brush density and A-monomer fraction f. When f = 0.7, due to the wetting effect produced by polymer brush the outside concentric lamellar ring will come up again with increasing ^-φAB. We carefully examined the intermediate phases and discovered a rich variety of new two-dimensional structures that have no analogue in the unconfined system, which include nonhexagonally coordinated cylinder phases and structures intermediate between lamellae and cylinders, like CRCR, when f = 0.35. Then we map the stability regions and phase boundaries for all the structures we found.