| 摘要 |
A method for forming an open celled membrane. A gelled polymer is formed of a polymer having a known polymer interfacial tension and a known polymer melting point. A first liquid into which the polymer is soluble, the first liquid being selected to have a first liquid interfacial tension to be 95% or less than the polymer interfacial tension is mixed with a second liquid that is miscible in the first liquid to form a mixture. The second liquid is selected to have a second liquid interfacial tension to be 105% or greater than the polymer interfacial tension. The polymer is dissolved into the mixture to form a saturated solution. The saturated solution reaches a solution forming temperature which is less than the polymer melting point. The saturated solution is spread on a substrate. The first liquid from the saturated solution to form the gelled polymer.
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