Dynamical entropy control and macroscopic phase separation in strongly correlated soft materials

强关联软材料中的动态熵控制和宏观相分离

• 批准号: 13031062
• 负责人: OHTA Takao
• 金额: $ 12.42万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13031062/
• 关键词: Soft material; self-organization; diblock copolymers; numerical simulations; microphase separation; elastic effect; Hopf bifurcation; amplitude equation; ダブルジャイロイド構造; 形態転移; 光誘起相分離; 高分子分散液晶系; 計算機シミュレーション; 非平衡系

We have carried out theoretical analysis and numerical simulations of mesoscopic domain formation and its kinetics in block copolymers. Phase separation competing with chemical reactions in also studied. In this case, periodic domain structures undergo a coherent propagation The subjects which we have investigated are listed as follows(1)structural transitions of mesophases in block copolymer melts. We have applied the mode expansion method to study the kinetics of transitions which involve so called gyroid structure(2)ordering dynamics of rod-coil copolymers where the elastic interaction in rod-rich domains plays a crucial role.(3)domains dynamics of reactive phase separating system, in which a Hopf bifurcation appears by changing the parameters. As a result, coherent motion of periodic domains emerges. This is the first step of the fusion of physics of soft materials and physics for from equilibrium.

我们已经对块共聚物中的介质结构域形成及其动力学进行了理论分析和数值模拟。相位分离与研究中的化学反应竞争。在这种情况下，周期性域结构经历了连贯的传播，我们研究的受试者列出了以下内容（1）块共聚物熔体中中间酶的结构过渡。我们已经应用了模式膨胀方法来研究过渡的动力学，这些动力学涉及所谓的旋转结构（2）订购杆圈共聚物的动力学，在这些动力学中，在杆富域中的弹性相互作用起着至关重要的作用。（3）反应相分离系统的域动力学，其中hopf bifurcurcitation a hopf bifurcurcation a通过更改参数会出现。结果，周期域的连贯运动出现了。这是从平衡的软材料和物理物理物理融合的第一步。

项目成果

M.Motoyama, N.Yamazaki, M.Nonomura, T.Ohta: "Microphase separation in rod-coil copolymers"J. Phys. Soc. Jpn. 72. 991-994 (2003)

M.Motoyama、N.Yamazaki、M.Nonomura、T.Ohta：“棒-线圈共聚物中的微相分离”J。

T.Okuzono: "Time-modulated oscillatory structures in phase-separating reactive mixtures"Phys. Rev. E66. 066216-066225 (2002)

T.Okuzono：“相分离反应混合物中的时间调制振荡结构”Phys。

Y.Enomoto: "Square-hexagonal transformation of periodic domain structures in a conserved system"Journal of Physical Society of Japan. 70. 2939-2947 (2001)

Y.Enomoto：“守恒系统中周期域结构的方六边形变换”日本物理学会杂志。

M.Nonomura: "Growth of Mesophases in Morphological Transitions"Journal of Physical Society of Japan. 70. 927-930 (2001)

M.Nonomura：“形态转变中的中间相的生长”日本物理学会杂志。

M.Motoyama, N.Yamazaki, M.Nonomura, T.Ohta: "Microphase separation in rod-coil copolymers"J.Phys.Soc.Jpn. 72. 991-994 (2003)

M.Motoyama、N.Yamazaki、M.Nonomura、T.Ohta：“棒-线圈共聚物中的微相分离”J.Phys.Soc.Jpn。