Solvent-induced novel morphologies in diblock copolymer blend thin films
文献类型：期刊论文
| 作者 | Chen YZ ; Wang ZB ; Gong YM ; Huang HY ; He TB |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2006 |
| 卷号 | 110期号:4页码:1647-1655 |
| 关键词 | POLYDISPERSE BLOCK COPOLYMERS BINARY BLENDS SUPERMOLECULAR STRUCTURES PHASE-BEHAVIOR NEUTRON REFLECTIVITY ELECTRIC-FIELDS VAPOR TREATMENT SURFACE MIXTURES ARRAYS |
| ISSN号 | 1520-6106 |
| 通讯作者 | he tb |
| 中文摘要 | we report the morphology and phase behaviors of blend thin films containing two poly styrene-b-poly (methyl methacrylate) (ps-b-pmma) diblock copolymers with different blending compositions induced by a selective solvent for the pmma block, which were studied by transmission electron microscopy (tem). the neat asymmetric ps-b-pmma diblock copolymers employed in this study, respectively coded as a(1) and a(2), have similar molecular weights but different volume fractions of ps block (f(ps) = 0.273 and 0.722). another symmetric ps-b-pmma diblock copolymer, coded as s, which has a ps block length similar to that of a(1), was also used. for the asymmetric a(1)/a(2) blend thin films, circular multilayered structures were formed. for the asymmetric a(1)/symmetric s blend thin films, inverted phases with pmma as the dispersed domains were observed, when the weight fraction of s was less than 50%. the origins of the morphology formation in the blend thin films via solvent treatment are discussed. combined with the theoretical prediction by birshtein et al. (polymer 1992, 33, 2750), we interpret the formation of these special microstructures as due to the packing frustration induced by the difference in block lengths and the preferential interactions between the solvent and pmma block. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235198300027 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/15971]  |
| 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 | Chen YZ,Wang ZB,Gong YM,et al. Solvent-induced novel morphologies in diblock copolymer blend thin films[J]. journal of physical chemistry b,2006,110(4):1647-1655. |
| APA | Chen YZ,Wang ZB,Gong YM,Huang HY,&He TB.(2006).Solvent-induced novel morphologies in diblock copolymer blend thin films.journal of physical chemistry b,110(4),1647-1655. |
| MLA | Chen YZ,et al."Solvent-induced novel morphologies in diblock copolymer blend thin films".journal of physical chemistry b 110.4(2006):1647-1655. |
入库方式： OAI收割
来源：长春应用化学研究所
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