ICCAS OpenIR
In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM
Hu, ZJ; Du, BY; Zhang, FJ; Xie, FC; He, TB
2002-10-01
Source PublicationPOLYMER
ISSN0032-3861
Volume43Issue:22Pages:6005-6012
AbstractNanostructure and morphology and their development of poly(di-n-hexylsilane) (PDHS) and poly(di-n-butylsilane) (PDBS) during the crystal-mesophase transition are investigated using small angle X-ray scattering (SAXS), wide angle X-ray diffraction and hot-stage atomic force microscopy. At room temperature, PDHS consists of stacks of lamellae separated by mesophase layers, which can be well accounted using an ideal two-phase model. During the crystal-mesophase transition, obvious morphological changes are observed due to the marked changes in main chain conformation and intermolecular distances between crystalline phase and mesophase. In contrast to PDHS, the lamellae in PDBS barely show anisotropy in dimensions at room temperature. The nonperiodic structure and rather small electronic density fluctuation in PDBS lead to the much weak SAXS. The nonperiodic structure is preserved during the crystal-mesophase transition because of the similarity of main chain conformation and intermolecular distances between crystalline phase and mesophase. (C) 2002 Published by Elsevier Science Ltd.
KeywordPolysilane Morphology Crystal-mesophase Transition
Indexed BySCI
Language英语
WOS IDWOS:000178269200023
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78706
Collection中国科学院化学研究所
Corresponding AuthorHe, TB
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Hu, ZJ,Du, BY,Zhang, FJ,et al. In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM[J]. POLYMER,2002,43(22):6005-6012.
APA Hu, ZJ,Du, BY,Zhang, FJ,Xie, FC,&He, TB.(2002).In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM.POLYMER,43(22),6005-6012.
MLA Hu, ZJ,et al."In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM".POLYMER 43.22(2002):6005-6012.
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