화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.25, No.4, 854-860, July, 2008
DOI10.1007/s11814-008-0141-z  Export Citation
Dispersion polymerization of NVCA in compressed liquid dimethyl ether in the presence of PDMS-g-pyrrolidone carboxylic acid: Effects of initiators
Kyoung Shil Oh, Won Bae1, Dong Woo Cho, Youn-Woo Lee, and Hwayong Kim†
  • School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul 151-744, Korea
  • 1R&D Institute, Miwon Commercial Co., Ltd., 405-3, Moknae-dong, Ansan-si, Gyeonggi 425-100, Korea
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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.
Keywords:V-65;V-601;AIBN;Dispersion Polymerization;PVK;DME;Monasil PCA
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