Effects of confinement on the order-disorder transition of diblock copolymer melts
文献类型：期刊论文
| 作者 | Miao, B; Yan, DD; Han, CC; Shi, AC |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2006-04-14 |
| 卷号 | 124期号:14 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.2187492 |
| 英文摘要 | The effects of confinement on the order-disorder transition of diblock copolymer melts are studied theoretically. Confinements are realized by restricting diblock copolymers in finite spaces with different geometries (slabs, cylinders, and spheres). Within the random phase approximation, the correlation functions are calculated using the eigenvalues and eigenfunctions of the Laplacian operator del(2) in the appropriate geometries. This leads to a size-dependent scattering function, and the minimum of the inverse scattering function determines the spinodal point of the homogeneous phase. For diblock copolymers confined in a slab or in a cylindrical nanopore, the spinodal point of the homogeneous phase (chi N)(s) is found to be independent of the confinement. On the other hand, for diblock copolymers confined in a spherical nanopore, (chi N)(s) depends on the confinement and it oscillates as a function of the radius of the sphere. Further understanding of the finite-size effects is provided by examining the fluctuation modes using the Landau-Brazovskii model. (c) 2006 American Institute of Physics. |
| 语种 | 英语 |
| WOS记录号 | WOS:000236796700070 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58367]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Miao, B |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China 2.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada |
| 推荐引用方式 GB/T 7714 | Miao, B,Yan, DD,Han, CC,et al. Effects of confinement on the order-disorder transition of diblock copolymer melts[J]. JOURNAL OF CHEMICAL PHYSICS,2006,124(14). |
| APA | Miao, B,Yan, DD,Han, CC,&Shi, AC.(2006).Effects of confinement on the order-disorder transition of diblock copolymer melts.JOURNAL OF CHEMICAL PHYSICS,124(14). |
| MLA | Miao, B,et al."Effects of confinement on the order-disorder transition of diblock copolymer melts".JOURNAL OF CHEMICAL PHYSICS 124.14(2006). |
入库方式： OAI收割
来源：化学研究所
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