IMAGE-ENHANCEMENT OF POLYETHERSULFONE ULTRAFILTRATION MEMBRANE-SURFACE STRUCTURE FOR ATOMIC FORCE MICROSCOPY

被引：33

作者：

FRITZSCHE, AK ^{[1
]}

AREVALO, AR ^{[1
]}

MOORE, MD ^{[1
]}

WEBER, CJ ^{[1
]}

ELINGS, VB ^{[1
]}

KJOLLER, K ^{[1
]}

WU, CM ^{[1
]}

机构：

[1] DIGITAL INSTRUMENTS INC,SANTA BARBARA,CA 93117

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1992年 / 46卷 / 01期

关键词：

D O I：

10.1002/app.1992.070460116

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The surface topography and pore structure of ultrafiltration membranes can be investigated with atomic force microscopy. In this study, it was found that the substitution of ethanol for water as the immersion medium improved the resolution of the fine structure of 10K polyethersulfone ultrafiltration membranes. Pores in the membrane surface from 7 to 9 nm in diameter were measured, which coincides with the range expected for 10,000 molecular weight cutoff (MWCO) ultrafiltration membranes. It is believed that this image enhancement results from increased damping and concomitant noise reduction resulting from the higher viscosity of ethanol in contrast to water.

引用

页码：167 / 178

页数：12

共 12 条

[1] ATOMIC RESOLUTION IMAGING OF A NONCONDUCTOR BY ATOMIC FORCE MICROSCOPY [J].