## Abstract Excellent in vivo thromboresistance has been obtained for FEP Teflon and for a polyether urethane prepared with electronegative surfaces using the electret effect. In vitro tissue culture studies have shown a marked improvement in tissue compatibility for negatively electrified Teflon.
The use of polymers for electrets
β Scribed by J. Van Turnhout
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 907 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0304-3886
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π SIMILAR VOLUMES
Charge stabilities of various polar polymer homoelectrets were determined. Although these electrets are reasonably stable in dry environments, they rapidly discharge when exposed to humidity. The rate of charge decay was found to depend directly on the ability of these polymers to absorb water under
## Abstract The use of polymeric materials as βthickβ recording media for holographic applications is discussed. These materials offer some interesting applications owing to their high diffraction efficiency, high storage density, excellent angular and spectral discrimination, as well as __in situ_
The paper cites certain results of an earlier paper 2 by the present writer in which are traced the consequences of the assumption that an electret is characterized by a state of polarization, semi-permanent in the sense that it decays very slowly with the time. The decay takes place under the influ