반회분형 Slurry공정으로부터 Ziegler-Natta 촉매에 의한 Ethylene-Propylene 공중합체의 합성 : 2. 단량체 공급비의 영향

김재현; 이학성; 김병규

Polymer(Korea), Vol.15, No.3, 229-234, June, 1991

Ethylene-Propylene Copolymerizations with Ziegler-Natta Catalysts in a Semibatch Slurry Process: 2. Effects of Monomer Feed Ratio

김재현, 이학성, 김병규

초록

3종의 Ziegler-Natta계 촉매를 사용하여 반회분형 slurry반응기에서 에틸렌-프로필렌 공중합을 행하였으며, 단위체 공급비에 따른 촉매활성의 변화와 생성공중합체의 조성의 변화를 검토하였다. 아울러 Fineman-Ross식으로부터 단량체 반응성비를 구하였으며, 생성공중합체의 고유점도 및 녹는점의 변화를 측정하였다.

Ethylene-propylene copolymerizations with 3 types of Ziegler-Natta catalyst were carried out in a semibatch slurry reactor. The effects of monomer feed ratio on catalyst activity and copolymer composition were examined. From Fineman-Ross equation, monomer reactivity ratios were determined. Intrinsic viscosities and melting temperature of the copolymers were also measured.

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Polym.(Korea), in submitted
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[1] Boor J, "Ziegler-Natta Catalysts and Polymerizations," Academic, New York (1979)

[2] "Encyclopedia of Polymer Science and Technology," vol. 6, Wiley (1986)

[3] Polym.(Korea), in submitted

[4] Rabek JF, "Experimental Method in Polymer Chemistry," Wiley, New York (1987)

[5] ASTM D-3900, Method-A

[6] ASTM E-698-79

[7] ASTM D-1601

[8] Chien JCW, J. Polym. Sci. A: Polym. Chem., 17, 2555 (1979)

[9] Valvassori A, Macromol. Chem., 61, 46 (1963)

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

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

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

[13] Bier G, Gumboldt A, Lehmann G, Trans. Faraday Soc., 28, 98 (1960)

[14] Junghanns E, Gumboldt A, Bier G, Macromol. Chem., 58, 18 (1962)

[15] Natta G, J. Polym. Sci., 51, 411 (1961)

[16] Soga K, Ohtake M, Ohnishi R, Doi Y, Polym. Commun., 25, 171 (1984)

[17] Bushick RD, J. Polym. Sci., 3, 2047 (1965)

[18] Busico V, Mero L, Palumbo G, Zambell A, Makromol. Chem., 184, 2193