Dispersion polymerization of N-vinylcarbazole (NVCA) was performed in compressed liquid dimethyl ether with PDMS-g-pyrrolidonecarboxylic acid (Monasil PCATM) as the surfactant and with 2,2'-azobis(2,4-Dimethylvaleronitrile) (V-65), 2,2-azobisisobutyronitrile (V-60) (AIBN) and dimethyl 2,2'-Azobis(isobutyrate) (V-601) as the initiators. The effects of polymerization temperature, initiator types and initiator concentration were investigated. Spherical poly(N-vinylcarbazole) (PVK) particles were produced, even at 40 ℃, by the low-temperature initiator, 2,2'-azobis(2,4-Dimethylvaleronitrile) (V-65). Through low-temperature polymerization with V-65, we successfully obtained high molecular weight PVK.