Observations on Solution Crystallization of Poly(vinyl alcohol) in the Presence of Single-Wall Carbon Nanotubes

被引：23
|
作者：
Minus, Marilyn L. [1 ]
Chae, Han Gi [1 ]
Kumar, Satish [1 ]
机构：
[1] Georgia Inst Technol, Sch Polymer Text & Fiber Engn, Atlanta, GA 30332 USA
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 03期
基金：
美国国家科学基金会;
关键词：
crystallization; epitaxy; poly(vinyl alcohol); single crystal; single-wall carbon nanotubes; TEM; POLYMERIZATION-INDUCED EPITAXY; SCANNING-TUNNELING-MICROSCOPY; IN-SITU POLYMERIZATION; MECHANICAL-PROPERTIES; HETEROGENEOUS NUCLEATION; HIGH POLYMERS; ISOTACTIC POLYPROPYLENE; ELECTRON-MICROSCOPY; BEHAVIOR; MORPHOLOGY;
D O I：
10.1002/marc.200900539
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
PVA/SWNT dispersions yield aloe plant-like crystals, where the leaves are single crystals templated by PVA coated SWNT. Longer growth times (approximate to 18 months) lead to hexagonal rod-like crystals. HR-TEM images show evidence that PVA molecules are aligned parallel to the SWNT axis. WAXD, electron diffraction, and HR-TEM observations of these aloe plant and hexagonal crystals suggests evidence for possible PVA-SWNT epitaxy. Wide-angle and electron diffraction data of these crystals also show that the structure seems to mimic the 2D hexagonal crystal packing of SWNT. PVA lattice images and moire fringes were also observed in the leaf-like crystals.
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页码：310 / 316
页数：7
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