摘要:
A solvent-resistant polymeric membrane comprising a solvent-inert polymer having a solubility parameter greater than 18 (J/cm3)0.5, such as a polyketone, a polyether ketone, polyarylene ether ketone ketone, a polyimide, a polyetherimide, or a polyphenylene sulfide, is described. The solvent-resistant polymeric membrane can be prepared by methods in which solvent-inert polymers form a solution at room temperature.
摘要:
Membranes as well as a methods of treating membranes are disclosed. The method of treating a membrane includes contacting the membrane with a first solvent, contacting the membrane with an inert solvent, and contacting the membrane with an amine reactive compound. The first solvent includes a solvent having a Hansen solubility parameter in a range from about 10.0 to about 18. The membrane includes a polymer having an amine group.
摘要:
An interfacial composite structure as well as a method of making an interfacial composite structure are disclosed. The interfacial composite structure includes a support structure; and an interfacial membrane. The interfacial membrane is formed by a first organic solution and a second organic solution. The first organic solution includes a first reactant and the second organic solution includes a second reactant. The support structure is in contact with at least one of the organic solutions and the interfacial membrane includes a crosslinked polymer formed by the first reactant and the second reactant.
摘要:
A curable composition containing a functionalized poly(arylene ether), an acryloyl monomer, and a filler is compression molded by a method that includes introducing the composition to a mold, closing the mold and applying a first temperature of about 120 to about 200° C. and a first pressure of about 1,000 to about 40,000 kilopascals for about 1 to about 100 seconds; opening the mold for about 0.005 to about 10 seconds; and closing the mold a second time and applying a second temperature of about 120 to about 200° C. and a second pressure of about 1,000 to about 40,000 kilopascals for about 20 to about 100 seconds. Molded articles formed by the method exhibit improved dielectric properties.
摘要:
A functionalized poly(arylene ether) having a pendant carbon-carbon double bond is prepared by reacting the hydroxy end group of a poly(arylene ether) with a polyisocyanate compound to produce a urethane-capped poly(arylene ether) having pendant isocyanate functionality, which is then reacted with a polyfunctional compound having a carbon-carbon double bond and a hydroxy, thiol, or amino group. The functionalized poly(arylene ether) is useful as a component of a curable composition in which its carbon-carbon double bond copolymerizes with one or more olefinically unsaturated comonomers.