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Received October 7, 2002
Accepted December 16, 2002
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Influence of Process Parameters on Ethylene-Norbornene Copolymers Made by Using [2,2'-Methylenebis(1,3-dimethylcyclopentadienyl)]-Zirconium Dichloride and MAO
LG Chem., Ltd./Research Park, 104-1 Moonji-dong, Yuseong-gu, Daejeon 305-343, Korea
khsong@lgchem.co.kr
Korean Journal of Chemical Engineering, January 2003, 20(1), 22-26(5), 10.1007/BF02697179
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Abstract
Ethylene-norbornene copolymerization was investigated by using metallocene catalysts, [2,2'-methylenebis(1,3-dimethylcyclopentadienyl)]zirconium dichloride(2,2'-CH2 (1,3-Me2Cp)2ZrCl2, Catalyst A) and racemic-ethylenebis(indenly)zirconium dichloride (rac-Et(Ind)2 ZrCl2, Catalyst B), in the presence of methylaluminoxane as a cocatalyst. The influences of different process parameters such as polymerization temperature and ethylene pressure were studied by using a 56 wt% norbornene solution in toluene. The results show that Catalyst A has a higher activity in copolymerization than Catalyst B. Catalyst A also has a superior norbornene insertion performance to Catalyst B, resulting in polymers with higher glass transition temperatures, by approximately 70 ℃, at similar polymerization conditions, indicative of a great commercial potential of Catalyst A.
References
Bergstrom CH, Seppala JV, J. Appl. Polym. Sci., 63(8), 1063 (1997)
Brock E, Osan F, "TOPAS: Cyclo-olefin Copolymers," MetCon98: "Polymers in Transition," June 10-11, Houston, TX, USA (1998)
Cho HS, Choi KH, Choi DJ, Lee WY, Korean J. Chem. Eng., 17(2), 205 (2000)
Kaminsky W, Bark A, Arndt M, Makromol. Chem. Macromol. Symp., 47, 83 (1991)
Lamonte RR, McNally D, Plast. Eng., 56(6), 51 (2000)
Land HT, Osan T, Polym. Mater. Sci. Eng., 76, 22 (1997)
Lasarov H, Monkkonen K, Pakkanen TT, Macromol. Chem. Phys., 199, 1939 (1998)
Lee BY, Kim YH, Won YC, Han JW, Suh WH, Lee IS, Chung YK, Song KH, Organometallics, 21, 1500 (2002)
Lee DH, Jung HK, Kim WS, Min KE, Park LS, Seo KH, Kang IK, Noh SK, Polym.(Korea), 24(4), 445 (2000)
Ma JJL, Hackett M, "Polycyclic Olefins," Process Economics Program 223, SRI Consulting (1998)
McNally D, "Cyclic Olefin Copolymer," Modern Plastics 2001 World Encyclopedia (2001)
McKnight AL, Waymouth RM, Macromolecules, 32(9), 2816 (1999)
Ruchatz D, Fink G, Macromolecules, 31(15), 4684 (1998)
Brock E, Osan F, "TOPAS: Cyclo-olefin Copolymers," MetCon98: "Polymers in Transition," June 10-11, Houston, TX, USA (1998)
Cho HS, Choi KH, Choi DJ, Lee WY, Korean J. Chem. Eng., 17(2), 205 (2000)
Kaminsky W, Bark A, Arndt M, Makromol. Chem. Macromol. Symp., 47, 83 (1991)
Lamonte RR, McNally D, Plast. Eng., 56(6), 51 (2000)
Land HT, Osan T, Polym. Mater. Sci. Eng., 76, 22 (1997)
Lasarov H, Monkkonen K, Pakkanen TT, Macromol. Chem. Phys., 199, 1939 (1998)
Lee BY, Kim YH, Won YC, Han JW, Suh WH, Lee IS, Chung YK, Song KH, Organometallics, 21, 1500 (2002)
Lee DH, Jung HK, Kim WS, Min KE, Park LS, Seo KH, Kang IK, Noh SK, Polym.(Korea), 24(4), 445 (2000)
Ma JJL, Hackett M, "Polycyclic Olefins," Process Economics Program 223, SRI Consulting (1998)
McNally D, "Cyclic Olefin Copolymer," Modern Plastics 2001 World Encyclopedia (2001)
McKnight AL, Waymouth RM, Macromolecules, 32(9), 2816 (1999)
Ruchatz D, Fink G, Macromolecules, 31(15), 4684 (1998)
