Preparation of ultra‐low‐density microcellular materials |
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Authors: | Alexandre Richez Herv Deleuze Patrick Vedrenne Remy Collier |
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Affiliation: | Alexandre Richez,Hervé Deleuze,Patrick Vedrenne,Remy Collier |
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Abstract: | Microcellular polymeric materials can be obtained by the polymerization of a high‐internal‐phase emulsion. These materials are good candidates as targets toward inertial confinement fusion. This application requires severe specifications, including a very low density and a small cell size. In this study, we examined the influence of parameters such as emulsification conditions, surfactant nature, and the presence of a porogen on the obtainment of those requirements. It was possible to obtain microcellular polymeric foams with apparent densities as low as 0.0126 g/cm3. However, it was difficult to obtain very low material density and still maintain a small average pore size. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 2053–2063, 2005 |
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Keywords: | foams emulsion polymerization macroporous polymers density |
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