| http://www.w3.org/ns/prov#value | - It will also be appreciated by those skilled in the art that other methods of porogen removal, such as by atom abstraction, may be employed. [0040] The porogens of the present invention can be thermally removed under vacuum, nitrogen, argon, mixtures of nitrogen and hydrogen, such as forming gas, or other inert or reducing atmosphere, as well as under oxidizing atmospheres.
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