中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Direct Observation of the Relief Structure Formation in the Nearly Symmetric Poly(styrene)-block-poly(epsilon-caprolactone) Diblock Copolymer Thin Film

文献类型:期刊论文

作者Zhang P ; Wang ZB ; Huang HY ; He TB
刊名macromolecules
出版日期2012
卷号45期号:22页码:9139-9146
关键词POLYMER-FILMS MICROPHASE SEPARATION MORPHOLOGY EVOLUTION FORCE MICROSCOPY CRYSTALLIZATION POLY(EPSILON-CAPROLACTONE)-BLOCK-POLYSTYRENE INSTABILITIES TEMPERATURE MOLECULES DYNAMICS
ISSN号0024-9297
通讯作者he tb
中文摘要the relief structure formation associated with microphase separation and dewetting of the nearly symmetric poly(styrene)-block-poly(epsilon-caprolactone) diblock copolymer thin film was studied in this work, for which a suite of complementary methods, namely atomic force microscopy, optical microscopy, and x-ray photoelectron spectroscopy combined with hot stages, were applied. through control of the microphase separation strength, indicated by the chi(n) (where chi and n indicate the flory-huggins interaction parameter and the total degree of polymerization, respectively), varied relief structures were observed. on one side, when there was no microphase separation (chi(n) = 3.9), typical droplets resulting from autophobic dewetting were revealed. on the other side, when there was intermediate microphase separation (chi(n) >= 14.0), superimposed lamellae except for droplets was discerned. moreover, with continual heating, the formation of the superimposed lamellae and its dynamic transition to ordered droplets were first revealed with the in situ afm scanning. on the basis of these findings, we conclude that the superimposed lamella is a metastable structure, resulting from the coupling of dewetting and microphase separation, and it finally reaches the equilibrium droplets. the formation of superimposed lamellae was attributed to that the microphase separation strength was forced to yield to the minimization tendency of surface tension.
收录类别SCI收录期刊论文
语种英语
WOS记录号WOS:000311522100024
公开日期2013-03-18
源URL[http://ir.ciac.jl.cn/handle/322003/47826]  
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
Zhang P,Wang ZB,Huang HY,et al. Direct Observation of the Relief Structure Formation in the Nearly Symmetric Poly(styrene)-block-poly(epsilon-caprolactone) Diblock Copolymer Thin Film[J]. macromolecules,2012,45(22):9139-9146.
APA Zhang P,Wang ZB,Huang HY,&He TB.(2012).Direct Observation of the Relief Structure Formation in the Nearly Symmetric Poly(styrene)-block-poly(epsilon-caprolactone) Diblock Copolymer Thin Film.macromolecules,45(22),9139-9146.
MLA Zhang P,et al."Direct Observation of the Relief Structure Formation in the Nearly Symmetric Poly(styrene)-block-poly(epsilon-caprolactone) Diblock Copolymer Thin Film".macromolecules 45.22(2012):9139-9146.

入库方式: OAI收割

来源:长春应用化学研究所

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