Scanning Tunneling Microscopic Observation of Adsorbed Polymer Chains
Scanning Tunneling Microscopic Observation of Adsorbed Polymer Chains
批准号:
63470089
负责人:
TAKAHASHI Akira
金额:
$4.22万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (B)
财政年份:
1988
资助国家:
日本
项目状态:
已结题
起止时间:
1988 至 1990
中文摘要
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英文摘要
Molecular shape and conformations of several polymers adsorbed or deposited on graphite surfaces were observed by a scanning tunneling microscope (STM). Iodine doped poly (N-vinylcarbazole) (PVCZ) which is a flexible polymer was deposited on the graphite and global shapes of PVCZ could be observed. The observed spread shape corresponded to the theoretically predicted shape for an isolated adsorbed chain.Double helix conformation of DNA could be observed and then STM observation of single helical structure of amylose molecules was attempted. Isolated single helical amylose molecules could be observed, whose length corresponds to molecular size and the pitch of helix corresponds to crystalline structure. The STM observation of kappa-carrageenan, which is a gel forming polyelectrolyte was also challenged, and we could succeed to observe not only helical structure of carrageenan molecule but also the junction zones of carrageenan gels.
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高橋 彰: "Adsorption and Desorption Behavior of Polymers at an Interface" Proc.IUPAC 32nd International Symposium on Macromolecules “Frontiers of Macromolecular Science". 331-336 (1989)
Akira Takahashi:“聚合物在界面处的吸附和解吸行为”Proc.IUPAC 第 32 届国际高分子研讨会“高分子科学前沿”331-336 (1989)。
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通讯作者:
高橋 彰: "固体表面への高分子の吸着" 表面科学. 10. 142-148 (1989)
Akira Takahashi:“聚合物在固体表面上的吸附”表面科学 10. 142-148 (1989)。
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Takahashi, Akira: "Molecular Theory of Polymer Adsorption" Current Research in Polym. Sci. (Japanese),. 36. 37-41 (1990)
Takahashi, Akira:“聚合物吸附的分子理论”当前聚合物研究。
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Takahashi, Akira: "Adsorption of Polymers on Solid Surfaces" Surface Sci. (Japanese),. 10,. 142-148 (1989)
Takahashi, Akira:“聚合物在固体表面上的吸附”表面科学。
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岡 幸広: "Scanning Tunneling Microscope Observation of Shape of Iodine Doped Poly(Nーvinylcarbazole) Deposited on Graphite Surface" Polymer J.23. (1991)
Yukihiro Oka:“石墨表面沉积的碘掺杂聚(N-乙烯基咔唑)形状的扫描隧道显微镜观察”聚合物 J.23(1991)。
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Angiography of the temporomandibular joint ; arterial blood supply to the mandibular condyle via the surrounding soft tissue
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