ISSN:
1059-910X
Keywords:
Beam damage
;
Irradiation effects
;
Osmium tetroxide
;
Polymer blends
;
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Natural Sciences in General
Notes:
A new technique for the identification of phases contained within a polymer blend is described in this paper. The technique utilises the beam damage which occurs when polymers are irradiated in an electron microscope. It has been found that during the irradiation process isolated double bonds are formed which can be revealed by staining with osmium tetroxide. The density of staining and its relationship to electron exposure is shown to be a characteristic feature of a particular chemical structure. It allows for polymer phase identification with a high spatial resolution and also for contrast enhancement and preservation. This technique offers a unique way of studying a fine dispersion of phases in polymer blends, even where only low atomic number elements such as C, H, and O are present. © 1993 Wiley-Liss, Inc.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jemt.1070240406
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