Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-28T20:04:26.195Z Has data issue: false hasContentIssue false
  • English
  • Français

A Time-Sectioning Cryo-Field Emission SEM (Cryo-Fesem) Study of Film Formation in Structured Latex Coatings

Published online by Cambridge University Press:  02 July 2020

Yue Ma ,
L. E. Scriven ,
H. T. Davis  and
S. L. Erlandsen
Yue Ma
Affiliation:
Department of Chemical Engineering & Materials Science
L. E. Scriven
Affiliation:
Department of Chemical Engineering & Materials Science
H. T. Davis
Affiliation:
Department of Chemical Engineering & Materials Science
S. L. Erlandsen
Affiliation:
Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA
Get access

Abstract

Structured latex coatings find such applications as specialty paints, micro- and ultra-filtration membranes, templates for synthesizing inorganic complementary structures, and embedding media for whole-cell based bioreactors. to control well the microstructure and other properties of the final coatings requires understanding the film formation process that transforms a deposited layer of colloidal particles of polymer into a coherent solid coating as it dries, usually in air. This process cannot be visualized by light microscopy techniques when the latex particles are a few hundred down to a few tens of nanometers in size, as is normally the case. Conventional electron microscopy requires too high vacuum for liquid samples to survive. Environmental scanning electron microscopy tolerates modest partial pressure of solvent but is limited to a coating’s top surface and at low resolution. What is needed is to observe the interior of a drying, hydrated coating at nm-resolution. Cryo-SEM is a powerful means of studying microstructure evolution throughout a coating’s thickness in the wet and moist stages of film formation.

Type
Cryoimmobilization, Freeze Substitution and Cryoem (Organized by S. Erlandsen)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 716 - 717
Copyright
Copyright © Microscopy Society of America 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.)Sutanto, E., Ma, Y., Davis, H. T., and Scriven, L. E., in ACS Symposium Series Volume on Film Formation (1999), in pressGoogle Scholar