中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Crystallization and orientation of syndiotactic polystyrene in nanorods

文献类型:期刊论文

作者Wu H ; Wang W ; Yang HX ; Su ZH
刊名macromolecules
出版日期2007
卷号40期号:12页码:4244-4249
关键词TEMPLATE SYNTHESIS CRYSTAL-STRUCTURE BLOCK-COPOLYMERS NANOTUBES NANOMATERIALS CONFINEMENT MORPHOLOGY FIBRILS ALUMINA NANOSTRUCTURES
ISSN号0024-9297
通讯作者su zh
中文摘要syndiotactic polystyrene (sps) nanorods of 200 and 80 nm diameters were prepared by infiltrating porous anodic alumina oxide templates with polymer melt, and the crystallinity and orientation of various forms of sps crystals in the nanorods were studied by ftir spectroscopy and electron diffraction. for sps crystallized from amorphous state at lower temperatures, a-form crystals were found in the nanorods with random orientation and the same degree of crystallinity as that in the bulk. however, for sps crystallized from molten state at 260 degrees c, while no preferred orientation was found for the chains in the melt, the beta-crystals formed in the nanorods oriented preferentially with the c-axis aligning perpendicular to the axial direction of the nanorod, and the degree of crystallinity was significantly lower than that in the bulk. the crystallinity decrease was more profound for nanorods of smaller diameter. these results were also supported by electron diffraction data and can be attributed to competition between nucleation and crystal growth in the nanotemplates.
收录类别SCI
语种英语
WOS记录号WOS:000247138500024
公开日期2010-07-13
源URL[http://ir.ciac.jl.cn/handle/322003/13477]  
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
Wu H,Wang W,Yang HX,et al. Crystallization and orientation of syndiotactic polystyrene in nanorods[J]. macromolecules,2007,40(12):4244-4249.
APA Wu H,Wang W,Yang HX,&Su ZH.(2007).Crystallization and orientation of syndiotactic polystyrene in nanorods.macromolecules,40(12),4244-4249.
MLA Wu H,et al."Crystallization and orientation of syndiotactic polystyrene in nanorods".macromolecules 40.12(2007):4244-4249.

入库方式: OAI收割

来源:长春应用化学研究所

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