頁籤選單縮合
題名 | Studies on the Synthesis of Ethylene Copolymers and Their Properties= |
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作者 | 江彰吉; 王大勇; Jiang, George J.; Wang, Ta-yong; |
期刊 | Journal of the Chinese Chemical Society |
出版日期 | 19980600 |
卷期 | 45:3 1998.06[民87.06] |
頁次 | 頁341-347 |
分類號 | 340 |
語文 | eng |
關鍵詞 | Metallocene catalyst; Ethylene copolymer; |
英文摘要 | The copolymerization of ethylene and 5-ethylidene-2-norbornene (ENB) catalyzed by metallocene atalysts system is reported in this paper. The catalysts include Et(Ind)□ZrCl□/MAO and Cp□ZrCl□/MAO. The resulting copolymer contains an ethylidene group which can be readily converted to a hydroxyl group by hydrogen borane. Then the hydroxyl group in turn can be utilized for grafting with ε-caprolactone. The dependence of the graft weight percentage on the reaction time was also studied. The graft copolymer is a compatibilizer for various polyethylene blends with engineering plastics. A functional polyethylene can be easily synthesized by the copolymerization of ethylene and 9- decen-l-d using a homogeneous catalytic system of Et(Ind)□ZrCl□/MAO. The resulting functional polyethylene was characterized by NMR, DSC, IR and TGA; andcan also be utilized for grafting with ε-caprolactone. The grafted copolymer is also an effective compatibilizer. |
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