Inverted to normal phase transition in solution-cast polystyrene-poly(methyl methacrylate) block copolymer thin films
文献类型：期刊论文
| 作者 | Gong YM ; Huang HY ; Hu ZJ ; Chen YZ ; Chen DJ ; Wang ZB ; He TB |
| 刊名 | macromolecules
 |
| 出版日期 | 2006 |
| 卷号 | 39期号:9页码:3369-3376 |
| 关键词 | ORDER-DISORDER TRANSITION MEAN FIELD-THEORY DIBLOCK COPOLYMER TRIBLOCK COPOLYMER POLY(METHYL METHACRYLATE) MICROPHASE SEPARATION SELECTIVE SOLVENTS LIGHT-SCATTERING ELECTRIC-FIELDS COLLOIDAL RODS |
| ISSN号 | 0024-9297 |
| 通讯作者 | he tb |
| 中文摘要 | we have investigated the inverted phase formation and the transition from inverted to normal phase for a cylinder-forming polystyrene-block-poly(methyl methacrylate) (ps-b-pmma) diblock copolymer in solution-cast films with thickness about 300 nm during the process of the solution concentrating by slow solvent evaporation. the cast solvent is 1, 1,2,2-tetrachloroethane (tetra-ce), a good solvent for both blocks but having preferential affinity for the minority pmma block. during such solution concentrating process, the phase behavior was examined by freeze-drying the samples at different evaporation time, corresponding to at different block copolymer concentrations, phi. as phi increases from similar to 0.1 % (nu/nu), the phase structure evolved from the disordered sphere phase (ds), consisting of random arranged spheres with the majority ps block as i core and the minority pmma block as a corona, to ordered inverted phases including inverted spheres (is), inverted cylinders (ic), and inverted hexagonally perforated lamellae (ihpl) with the minority pmma block comprising the continuum phase, and then to the lamellar (lam) phase with alternate layers of the two blocks, and finally to the normal cylinder (nc) phase with the majority ps block comprising the continuum phase. the solvent nature and the copolymer solution concentration are shown to be mainly responsible for the inverted phase formation and the phase transition process. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000237390100039 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16005]  |
| 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 | Gong YM,Huang HY,Hu ZJ,et al. Inverted to normal phase transition in solution-cast polystyrene-poly(methyl methacrylate) block copolymer thin films[J]. macromolecules,2006,39(9):3369-3376. |
| APA | Gong YM.,Huang HY.,Hu ZJ.,Chen YZ.,Chen DJ.,...&He TB.(2006).Inverted to normal phase transition in solution-cast polystyrene-poly(methyl methacrylate) block copolymer thin films.macromolecules,39(9),3369-3376. |
| MLA | Gong YM,et al."Inverted to normal phase transition in solution-cast polystyrene-poly(methyl methacrylate) block copolymer thin films".macromolecules 39.9(2006):3369-3376. |
入库方式： OAI收割
来源：长春应用化学研究所
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