Effect of crystallization on the lamellar orientation in thin films of symmetric poly(styrene)-b-poly(L-lactide) diblock copolymer
文献类型：期刊论文
| 作者 | Chen DJ ; Gong YM ; He TB ; Zhang FJ |
| 刊名 | macromolecules
 |
| 出版日期 | 2006 |
| 卷号 | 39期号:12页码:4101-4107 |
| 关键词 | SURFACE-INDUCED ORIENTATION ABC TRIBLOCK COPOLYMERS BLOCK-COPOLYMER MICROPHASE SEPARATION CONFINED CRYSTALLIZATION CRYSTAL-GROWTH MICRODOMAIN ORIENTATION POLYMER CRYSTALLIZATION POLY(L-LACTIC ACID) SELF-ORGANIZATION |
| ISSN号 | 0024-9297 |
| 通讯作者 | he tb |
| 中文摘要 | the effect of crystallization on the lamellar orientation of poly( styrene)-b-poly(l-lactide) (ps-plla) semicrystalline diblock copolymer in thin films has been investigated by atomic force microscopy (afm), transmission electronic microscopy (tem), and x-ray photoelectron spectroscopy (xps). in the melt state, microphase separation leads to a symmetric wetting structure with plla blocks located at both polymer/substrate and polymer/air interfaces. the lamellar period is equal to the long period l in bulk determined by small-angle x-ray scattering (saxs). symmetric wetting structure formed in the melt state provides a model structure to study the crystallization of plla monolayer tethered on glassy (t-c < t-g,t-ps) or rubber (t-c > t-g,t-ps) ps substrate. in both cases, it is found that the crystallization of plla results in a "sandwich" structure with amorphous ps layer located at both folding surfaces. for t-c <= t-g,t- ps, the crystallization induces a transition of the lamellar orientation from parallel to perpendicular to substrate in between and front of the crystals. in addition, the depletion of materials around the crystals leads to the formation of holes of 1/2 l, leaving the adsorbed monolayer exposure at the bottom of the holes. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238051600022 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16003]  |
| 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 DJ,Gong YM,He TB,et al. Effect of crystallization on the lamellar orientation in thin films of symmetric poly(styrene)-b-poly(L-lactide) diblock copolymer[J]. macromolecules,2006,39(12):4101-4107. |
| APA | Chen DJ,Gong YM,He TB,&Zhang FJ.(2006).Effect of crystallization on the lamellar orientation in thin films of symmetric poly(styrene)-b-poly(L-lactide) diblock copolymer.macromolecules,39(12),4101-4107. |
| MLA | Chen DJ,et al."Effect of crystallization on the lamellar orientation in thin films of symmetric poly(styrene)-b-poly(L-lactide) diblock copolymer".macromolecules 39.12(2006):4101-4107. |
入库方式： OAI收割
来源：长春应用化学研究所
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