摘要
利用动态密度泛函(Dynamic density functional theory,DDFT)方法研究了三维受限下嵌段共聚物的微观相分离,讨论了共聚物链长和表面吸附强度对微观相形成与取向的影响.体系中随机分布的等径微球提供三维限制结构,体积分数为0.6.增加微球的半径和体积分数,能够使其从破坏微相规整结构的纳米掺杂过渡到提供三维限制结构.调整嵌段共聚物与微球表面的相互作用对微相形成与取向有重要影响.
The microphase separation of symmetric diblock copolymer under three-dimensional confinement was studied with dynamic density functional theory（DDFT）. The confinement structure is randomly distributed microspheres in space with maximum volume fraction of 0. 6. The effects by varying the block copolymer chain length and the microsphere size on the microphase morphologies were discussed. Moreover, the preferentially attractive interaction between block A and the microsphere surface was considered, which takes great effects on the microphase orientation under the confinement.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第2期316-319,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20490220
20404005)
吉林省科技发展计划重点项目(批准号:20050562)
教育部留学回国人员科研启动基金[批准号:教外司留(2004)527]资助
关键词
微观相分离
三维受限
动态密度泛函方法
Microphase separation
Three-dimensional confinement
Dynamic density functional theory
