Self-assembly morphology effects on the crystallization of semicrystalline block copolymer thin film
文献类型：期刊论文
| 作者 | Wei YH ; Pan CY ; Li BY ; Han YC |
| 刊名 | journal of chemical physics
 |
| 出版日期 | 2007 |
| 卷号 | 126期号:10页码:文献编号：104902 |
| 关键词 | AMORPHOUS DIBLOCK COPOLYMER ATOMIC-FORCE MICROSCOPY ACID) SINGLE-CRYSTALS POLYMER CRYSTALLIZATION POLY(L-LACTIC ACID) MICROPHASE SEPARATION POLYSTYRENE MICELLES BEHAVIOR ORIENTATION |
| ISSN号 | 0021-9606 |
| 通讯作者 | han yc |
| 中文摘要 | self-assembly morphology effects on the crystalline behavior of asymmetric semicrystalline block copolymer polystyrene-block-poly(l-lactic acid) thin film were investigated. firstly, a series of distinctive self-assembly aggregates, from spherical to ellipsoid and rhombic lamellar micelles (two different kinds of rhombic micelles, defined as rhomb 1 and rhomb 2) was prepared by means of promoting the solvent selectivity. then, the effects of these self-assembly aggregates on crystallization at the early stage of film evolution were investigated by in situ hot stage atomic force microscopy. heterogeneous nucleation initiated from the spherical micelles and dendrites with flat on crystals appeared with increasing temperature. at high temperature, protruding structures were observed due to the thickening of the flat-on crystals and finally more thermodynamically stable crystallization formed. annealing the rhombic lamellar micelles resulted in different phenomena. turtle-shell-like crystalline structure initiated from the periphery of the rhombic micelle 1 and spread over the whole film surface in the presence of mostly noncrystalline domain interior. erosion and small hole appeared at the surface of the rhombic lamellar micelle 2; no crystallization like that in rhomb 1 occurred. it indicated that the chain-folding degree was different in these two micelles, which resulted in different annealing behaviors. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000244895600030 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14285]  |
| 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 | Wei YH,Pan CY,Li BY,et al. Self-assembly morphology effects on the crystallization of semicrystalline block copolymer thin film[J]. journal of chemical physics,2007,126(10):文献编号：104902. |
| APA | Wei YH,Pan CY,Li BY,&Han YC.(2007).Self-assembly morphology effects on the crystallization of semicrystalline block copolymer thin film.journal of chemical physics,126(10),文献编号：104902. |
| MLA | Wei YH,et al."Self-assembly morphology effects on the crystallization of semicrystalline block copolymer thin film".journal of chemical physics 126.10(2007):文献编号：104902. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。