The present disclosure provides a porous elastomer, methods of preparing the porous elastomer, and methods of using the porous elastomers. The porous elastomers described herewith may be hydrophilic and hydrophobic porous elastomers derived from a TPPE precursor composite.

High temperature insulative composites that include a gel processed polymer matrix, insulative particles, and additional components are disclosed. In some embodiments, the high temperature insulative composite includes less than 35 wt % of a gel processed polymer matrix, more than 40 wt % insulative particles, and less than 35 wt % other materials. The additional materials include, but are not limited to, an opacifier, an antioxidant, reinforcement fiber(s), and combinations thereof. Also, the insulative composites have at least one of an average maximum temperature less than about 250 C., a z-strength of at least about 25 N, and a compressibility less than about 35% at 1 MPa. The high temperature insulative composites may be formed into thin, strong shapes, thereby facilitating the ability to fabricate shaped materials suitable for a target application. The insulative composite functions as a protective heat propagation barrier when subjected to a temperature above 300 C.

Disclosed herein are various cable gel seal arrangements and thermoplastic gels useful therein. The thermoplastic gels are prepared from a composition including a styrene triblock copolymer, a styrene diblock copolymer, an oil extender, and an additive selected from poly(2,6-dimethyl-1,4-phenylene oxide), a C9 resin, poly(alpha-methylstyrene), a coumarone-indene resin, and combinations thereof, wherein the additive has a T.sub.g from about 95 C. to about 200 C. The thermoplastic gels advantageously exhibit low compression set.