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Home / Publications / Journals / Fusion Science and Technology / Volume 70 / Number 2

Development of Hierarchical, Tunable Pore Size Polymer Foams for ICF Targets

Christopher E. Hamilton, Matthew N. Lee, A. Nicholas G. Parra-Vasquez

Fusion Science and Technology / Volume 70 / Number 2 / August-September 2016 / Pages 226-229

Technical Paper /

First Online Publication:July 11, 2016
Updated:August 9, 2016

One of the great challenges of inertial confinement fusion experiments is poor understanding of the effects of reactant heterogeneity on fusion reactions. The Marble campaign, conceived at Los Alamos National Laboratory, aims to gather new insights into this issue by utilizing target capsules containing polymer foams of variable pore sizes, tunable over an order of magnitude. Here, we describe recent and ongoing progress in the development of CH and CH/CD polymer foams in support of Marble. Hierarchical and tunable pore sizes have been achieved by utilizing a sacrificial porogen template within an open-celled poly(divinylbenzene) or poly(divinylbenzene-co-styrene) aerogel matrix, resulting in low-density foams (~30 mg/ml) with continuous multimodal pore networks.

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