화학공학소재연구정보센터
Polymer(Korea), Vol.14, No.4, 401-407, August, 1990
Ziegler-Natta 촉매에 의한 1-헥사데센의 중합
Polymerization of Hexadecene-1 with Ziegler-Natta Catalysts
초록
여러가지 촉매(TiCl3·1/3AlCl3, MgCl2/TiCl4, Mg(OEt)2/DCE/DIBP/TiCl4)와 공촉매 (염화이에틸알루미늄, 삼에틸알루미늄, 삼이소부틸알루미늄, 삼이소헥실알루미늄, 삼노르말옥틸알루미늄)을 이용한 1-헥사데센의 중합을 40℃, n-헵탄중에서 행하였다. 여러 촉매계에 대한 촉매활성을 조사하였으며 폴리(1-헥사데센)을 디에틸에테르로 추출하여 불용성 및 용해성 부분으로 나눈 다음 열분석, 점도 및 분자량 측정, l3C-NMR등으로 분석하였다. 그 결과 유기알루미늄 화합물의 알킬기가 클수록 보다 높은 입체규칙성과 큰 분자량을 가진 중합체가 얻어진다는 것을 알았다.
The polymerizations of hexadecene-1 were carried out at 40℃ in n-heptane by using the different catalysts (TiCl3·1/3AlCl3, MgCl2/TiCl4, Mg(OEt)2/DCE/DIBP/TiCl4) with various cocatalysts (diethyl aluminum chloride, triethyl aluminulm, triisobutyl aluminum, triisohexyl aluminum, tai-n-octyl aluminum). The activities of various catalyst systems for hexadecene-1 polymerization were reported. The poly(hexadecene-1) was fractionated with diethyl ether extraction and the soluble and insoluble parts have been characterized by the thermal analysis, intrinsic viscosity and molecular mass measurements, and 13C-nuclear magnetic resonance spectroscopy. From the analysis of polymer for various cocatalysts, it was found that the higher alkyl aluminum compound gave the higher stereoregularity and higher molecular mass.
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