Surface orientation of liquid crystalline poly(alkylsilanes)
Surface orientation of liquid crystalline poly(alkylsilanes)
复制标题
液晶聚烷基硅烷的表面取向
DOI：
10.1002/actp.1995.010460108
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Robert D. Miller
中科院分区：
文献类型：
--
作者：
B. Factor;T. Russell;M. Toney;Robert D. Miller
本文报道了聚己基戊基硅烷在硅基片上的薄膜X射线衍射测量结果。聚合物链以六方晶格堆积，其取向使得链平行于表面。此外，发现了一个显着程度的取向秩序与平面包含相邻分子位于表面平面。平行于膜表面，平均微晶尺寸为600 A，而垂直于表面，在整个膜厚度上存在几乎完美的聚合物链间堆叠。
X-ray diffraction measurements on thin films of poly(hexyl-pentylsilane) cast on silicon substrates are presented. The polymer chains pack in a hexagonal lattice which is oriented such that the chains lie parallel to the surface. In addition, a remarkable degree of orientational order was found with the planes containing the neighbor molecules lying in the surface plane. Parallel to the film surface, the average crystallite size is 600 A, while perpendicular to the surface, there is nearly perfect interchain stacking of the polymers throughout the thickness of the film.