CONFORMATIONS OF A TETHERED MEMBRANE - CRUMPLING IN GRAPHITIC OXIDE

被引：102

作者：

SPECTOR, MS ^{[1
]}

NARANJO, E ^{[1
]}

CHIRUVOLU, S ^{[1
]}

ZASADZINSKI, JA ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM ENGN,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.73.2867

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have used freeze-fracture electron microscopy and static light scattering to study the conformations of two-dimensional sheets of graphitic oxide suspended in aqueous solution. Electron micrographs show the graphite sheets are flat with some curling at the edges. Scattering experiments yield a fractal dimension of 2.15 (0.06). Lowering the solvent polarity with acetone enhances the intramembrane affinity and leads to a compact structure. Under no conditions did we find a crumpled phase, which had been hypothesized as possible for 2D tethered membranes. © 1994 The American Physical Society.

引用

页码：2867 / 2870

页数：4

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