Article
  • Preparation and Properties of Propylene/1-Hexene Copolymer
  • Lee DH, Kim JT, Jeong YT
  • 프로필렌/1-헥센 공중합체의 제조와 성질
  • 이동호, 김진태, 정영태
Abstract
The copolymerization of propylene and 1-hexene with MgCl2/EHA/TiCl4-TEA system has been studied in which MgCl2 was dissolved in 2-ethyl-1-hexanol(EHA). The effects of catalyst preparation conditions and polymerization conditions on the activity and composition of copolymers have been investigated. The maximum activity was obtained at [TEA]/[Ti]=60 and the content of 1-hexene was constant irrespective to [TEA]/[Ti]. The monomer reactivity ratio was dependent on the catalyst preparation conditions and the presence of Lewis bases. With addition of Lewis bases, the activity and 1-hexene contents in copolymer decreased. Thermal properties and mechanical properties of copolymer were also investigated.

염화마그네슘을 2-ethyl-1-hexanol(EHA)에 녹인 용액으로부터 제조한 사염화티탄 담지촉매로 프로필렌과 1-헥센의 공중합을 행하였다. 이때 촉매의 제조 조건 및 중합 조건 등에 따른 촉매의 활성과 공중합체의 조성을 조사하였으며, 아울러 첨가제인 Lewis염기의 영향도 조사하였다. 프로필렌/1-헥센 공중합에서 [TEA]/[Ti]의 농도비가 60일 경우에 최대의 활성을 나타내었으며, 공중합체의 1-헥센 함량은 [TEA]/[Ti]의 농도비에 관계없이 일정하였다. Kelen-Tudos 방법으로 구한 단량체의 반응성비는 촉매의 제조조건 및 Lewis염기의 유무에 따라 변하였다. Lewis염기를 첨가함에 따라 촉매의 활성과 1-헥센의 함량은 감소하였다. 또한 공중합체의 열적 성질과 기계적 성질도 조사하였다.

References
  • 1. Boor JZiegler-Natta Catalysts and Polymerization, p. 264, Academic Press, New York (1979)
  •  
  • 2. Lee DH, Hsu CC, Hsu CC, J. Appl. Polym. Sci., 26, 653 (1981)
  •  
  • 3. Lee DH, Jang JK, Ahn TO, J. Polym. Sci. A: Polym. Chem., 25, 1457 (1987)
  •  
  • 4. Lee DH, Min KE, Kim CW, J. Korean Chem. Soc., 31, 110 (1987)
  •  
  • 5. Lee DH, Min KE, Ahn TO, Polym. J., 8, 973 (1987)
  •  
  • 6. Lee DH, Min KE, Ha KR, Jo WH, Polym.(Korea), 11(3), 278 (1987)
  •  
  • 7. Lee DH, Lee DH, Ahn TO, Polymer, 29, 713 (1988)
  •  
  • 8. Lee DH, Min KE, Jo WH, Jeong YT, Polym.(Korea), 13(1), 68 (1989)
  •  
  • 9. Lee DH, You KH, Jeong HM, Jeong YT, Polym.(Korea), 13(9), 738 (1989)
  •  
  • 10. Do JG, Jeong YT, Lee DH, Polym.(Korea), 14(3), 240 (1990)
  •  
  • 11. Lee DH, Song KC, Jeong YT, Ha KR, Polym.(Korea), 16(1), 61 (1992)
  •  
  • 12. Kissin YVIsospecific Polymerization of Olefin with Heterogeneous Zieger-Natta Catalysts, p. 105, Springer-Verlag, New York (1985)
  •  
  • 13. Jeong YT, Lee DH, Makromol. Chem., 191, 1487 (1990)
  •  
  • 14. Jeong YT, Lee DH, Soga K, Makromol. Chem. Rapid Commun., 12, 5 (1991)
  •  
  • 15. Jeong YT, Lee DH, Shiono T, Soga K, Makromol. Chem., 192, 1727 (1991)
  •  
  • 16. Nowlin TE, Kissin YV, Wagner KP, J. Polym. Sci. A: Polym. Chem., 26, 755 (1988)
  •  
  • 17. Lindeman LP, Adams JQ, Anal. Chem., 43, 1245 (1971)
  •  
  • 18. Hu Y, Chien JCW, J. Polym. Sci. A: Polym. Chem., 26, 2003 (1988)
  •  
  • 19. Soga K, Yanagihara H, Lee DH, Makromol. Chem., 190, 995 (1989)
  •  
  • 20. Soga K, Chen SI, Ohnishi R, Polym. Bull., 8, 473 (1982)
  •  
  • 21. Kissin YV, Beach DL, J. Polym. Sci. A: Polym. Chem., 21, 1056 (1983)
  •  
  • 22. Kasiwa N, Kawasaki M, Yoshitake JCatalytic Polymerization of Olefins, ed. by T. Keii, K. Soga, p. 43, Kodansha, Tokyo (1986)
  •  
  • 23. Keii T, Suzuki E, Tamura M, Doi YTransition Metal Catalyzed Polymerization, ed. by R.P. Quirk, p. 97, Harward Academic Publishers, New York (1983)
  •  
  • 24. Kashiwa NTransition Metal Catalyzed Polymerization, ed. by R.P. Quirk, p. 379, Harward Academic Publishers, New York (1983)
  •  
  • 25. Soga K, Shiono T, Doi Y, Markromol. Chem., 189, 1531 (1988)
  •  
  • 26. Soga K, Shiono TTransition Metal Catalyzed Polymerization, ed. by R.P. Quirk, p. 266, Cambridge University Press, New York (1983)
  •  
  • 27. Roedel MJ, J. Am. Chem. Soc., 75, 6110 (1953)
  •  
  • 28. Florjanczyk Z, Deopura B, Stein RS, Vogel O, J. Polym. Sci. A: Polym. Chem., 20, 1051 (1982)
  •  
  • 29. 안태완, 이동호, 박이순, 이상원, 정한모고분자물성, p. 425, 대광문화사 (1989)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1992; 16(4): 451-459

    Published online Jul 25, 1992