Domain Orientation and Grain Coarsening in Cylinder-Forming Poly(styrene-b-methyl methacrylate) Films
文献类型：期刊论文
| 作者 | Ji SX ; Liu CC ; Liao W ; Fenske AL ; Craig GSW ; Nealey PF |
| 刊名 | macromolecules
 |
| 出版日期 | 2011 |
| 卷号 | 44期号:11页码:4291-4300 |
| 关键词 | COPOLYMER THIN-FILMS CONTROLLED INTERFACIAL INTERACTIONS PS-B-PMMA BLOCK-COPOLYMER DIBLOCK COPOLYMER WETTING BEHAVIOR MICRODOMAIN ORIENTATION GENERALIZED-APPROACH HOMOPOLYMER BLENDS CHEMICAL-PATTERNS |
| ISSN号 | 0024-9297 |
| 通讯作者 | nealey pf |
| 中文摘要 | the domain orientation and grain sizes in cylinder-forming poly(styrene-b-methyl methacrylate) (ps-b-pmma) films were systematically investigated as a function of film thickness (32-640 nm), annealing temperature (190-230 degrees c), and wetting behavior of ps-b-pmma on substrates. the domain orientation at the film surface depended on film thickness as well as both the polymer-substrate and polymer-free surface boundary conditions. in thin films (thickness l < 3l(0), where l(0) is the domain period of the block copolymer), the polymer-substrate boundary condition dominated and determined the domain orientation of the block copolymer. at intermediate thicknesses (3l(0) < l < 6l(0)) the interplay of both boundary conditions usually resulted in the formation of a mixed structure. in films with l > 6l(0), the two boundary conditions decoupled, and the polymer-free surface interaction determined the domain orientation of cylinders near the film surface regardless of the chemistry of the underlying substrate. the orientational correlation length (xi) of grains of perpendicular cylinders at the surface increased with the increase of annealing temperature for films of equal l. the grains coarsened at 210 and 230 degrees c, and the corresponding xi's scaled with annealing time (t) according to a power law, xi similar to t(phi), with phi = 0.28 +/- 0.01. xi's also increased linearly with l. in films annealed at 190 degrees c, the xi's were nearly constant with increasing l. the technical significance of this work is that the surface domain pattern with a large xi can be achieved on the surface of thick films and the surface pattern can be successfully replicated by molecular transfer printing (mtp) to create a chemical pattern with the same xi without the use of lithographic tools. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000291288900034 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44582]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ji SX,Liu CC,Liao W,et al. Domain Orientation and Grain Coarsening in Cylinder-Forming Poly(styrene-b-methyl methacrylate) Films[J]. macromolecules,2011,44(11):4291-4300. |
| APA | Ji SX,Liu CC,Liao W,Fenske AL,Craig GSW,&Nealey PF.(2011).Domain Orientation and Grain Coarsening in Cylinder-Forming Poly(styrene-b-methyl methacrylate) Films.macromolecules,44(11),4291-4300. |
| MLA | Ji SX,et al."Domain Orientation and Grain Coarsening in Cylinder-Forming Poly(styrene-b-methyl methacrylate) Films".macromolecules 44.11(2011):4291-4300. |
入库方式： OAI收割
来源：长春应用化学研究所
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