반회분형 Slurry 공정으로부터 Ziegler-Natta 촉매에 의한 Ethylene-Propylene 공중합체의 합성: 1. 중합시간 및 온도의 영향

김재현; 이학성; 김병규

Polymer(Korea), Vol.15, No.2, 112-117, April, 1991

Ethylene-Propylene Copolymerizations with Ziegler-Natta Catalysts in a Semibatch Slurry Process : 1. Effects of POlymerization Time and Temperature

김재현, 이학성, 김병규

초록

3종의 Ziegler-Natta계 촉매를 사용하여 반회분형 slurry반응기에서 에틸렌-프로필렌 공중합을 행하고, 각 촉매계에 대하여 중합시간에 따른 촉매활성 및 생성공중합체의 조성의 변화를 검토하였으며, 아울러 반응온도가 촉매활성 및 생성공중합체의 조성에 미치는 영향을 조사하였다.

Ethylene-propylene copolymerizations with 3 types of Ziegler-Natta catalysts were carried out in a semibatch slurry reactor. The variations of catalyst activity and copolymer composition with polymerization time were investigated. The effects of polymerization temperature on catalyst activity and copolymer composition were also examined.

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[1] Choi KY, Ray WH, Rev. Macromol. Chem. Phys., C25, 1 (1985)

[2] "Polyolefins Through the 80s-A Time of Change," SRI International, C13, 303

[3] Jeong YT, Kim YT, Jeong HM, Lee DH, Polym.(Korea), 12(3), 229 (1988)

[4] Rabeck JF, "Experimental Methods in Polymer Chemistry," Wiley, New York, 225 (1987)

[5] ASTM D-3900, Method-A

[6] Natta G, Mazzanti G, Valssori A, Sartori G, Fiumani D, J. Polym. Sci., 51, 411 (1961)

[7] Chaudhari RV, Ramachandran PA, AIChE J., 26, 177 (1987)

[8] Keii T, "Kinetics of Ziegler-Natta Polymerization," Kodansha, Tokyo, 15 (1972)

[9] Cozewith C, Macromolecules, 482 (1971)

[10] Ham GE, "Copolymerization," Interscience, New York, 128 (1964)

[11] Quirk RP, "Transition Metal Catalyzed Polymerization," Cambridge Univ. Press, New York, 740 (1988)

[12] Kim I, Ph.D. Thesis, KAIST, Seoul, 55 (1990)

[13] Natta G, Valvassori A, Sartori G, "Polymer Chemistry of Synthetic Elastomers," 687 (1969)

[14] Woo SI, "Development of Olefin Catalyst," KAIST, 59 (1987)

[15] Chien JCW, J. Polym. Sci. A: Polym. Chem., 1, 425 (1968)

[16] Kashiwa N, Nizum A, Minami S, Polym. Bull., 12, 105 (1984)

[17] Kissin YV, Beach DL, J. Polym. Sci., 21, 1065 (1984)