Li Shiben, Jiang Ying, Chen Jeff Z Y
Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China.
Soft Matter. 2014 Nov 28;10(44):8932-44. doi: 10.1039/c4sm01884b.
We investigate the phase behavior of semiflexible-rod diblock copolymers in a parameter range where the system displays columnar and lamella structures, using a self-consistent field theory based on the wormlike-chain model. Both Flory-Huggins and Maier-Saupe orientational interactions are incorporated in the formalism, which allows us to explore microphase separation and liquid-crystal ordering simultaneously. Order-to-order phase transitions induced by chain rigidity and orientational interaction are both reported and analyzed. Coupled orientational ordering and spatial inhomogeneity of the four microphase-separated states are discussed in this work: hexagonal column, ellipse column, smectic-A, and smectic-C.
我们使用基于蠕虫状链模型的自洽场理论，研究了半柔性棒状二嵌段共聚物在系统呈现柱状和层状结构的参数范围内的相行为。弗洛里－哈金斯相互作用和迈尔－绍佩取向相互作用均被纳入该形式体系，这使我们能够同时探究微相分离和液晶有序化。我们报告并分析了由链刚性和取向相互作用引起的逐级相变。本文讨论了四种微相分离态的耦合取向有序化和空间不均匀性：六方柱状、椭圆柱状、近晶A相和近晶C相。
