Patent ID: 8093308

Claim:
A method comprising: contacting a first styrenic polymer composition comprising residual styrene monomer with a molecular sieve, wherein the molecular sieve is selected from the group consisting of L-zeolite, X-zeolite, Y-zeolite, omega zeolite, beta zeolite, ZSM-4, ZSM-10, ZSM-12, ZSM-20, REY, USY, RE-USY, LZ-210, LZ-210-A, LZ-210-M, LZ-210-T, SSZ-24, ZZA-26, SSZ-31, SSZ-33, SSZ-35, SSZ-37, SSZ-41, SSZ-42, SSZ-44, MCM-58, mordenite, faujasite, and combinations thereof; and recovering a second styrenic polymer composition comprising a reduced amount of residual styrene monomer.