Patent ID: 8461223

Claim:
An article comprising an aerogel, comprising a cross-linked polymer, wherein the cross-linked polymer is formed by metathesis polymerization of at least one olefin feedstock selected from the group consisting of (a) polycyclic olefins having two or more rings and two or more carbon-carbon double bonds, (b) acyclic polyolefins having three or more unconjugated carbon-carbon multiple bonds, (c) cycloolefins substituted with one or more unconjugated alkene residues, and (d) oligomers and polymers formed by metathesis polymerization of monomer olefin (a), monomer olefin (b), or monomer olefin (c); and wherein the density of the aerogel is from 0.01 g/cm 3 to 0.6 g/cm 3 .