Structure and tensile properties of metallocene polyethylenes 茂金屬聚乙烯結(jié)構(gòu)與拉伸性能的研究
On toughness of polypropylene with metallocene polyolefin elastomers 茂金屬聚烯烴彈性體增韌聚丙烯的研究
Homogeneous metallocene catalyst 均相茂金屬催化劑
The structure of the metallocene had an important influence on the maximum activity of the comonomer effect 共聚催化劑的結(jié)構(gòu)對整個原位共聚體系活性的影響比較明顯。
The new development and the application of metallocene ethylene / octene copolymer were reviewed with 20 references 摘要綜述了茂金屬乙烯辛烯共聚物作為彈性體材料的最新應(yīng)用進展。
Those metallocene branched polyethylene exceed all others in basic properties with processing properties being close to the general polyethylene 開發(fā)的茂金屬支化聚乙烯基本性能優(yōu)于通用聚乙烯,而加工性能接近通用聚乙烯。
The application experiment data show that metallocene branched polyethylene prepared by the new method are applicable to tubing and large - scale hollow container 應(yīng)用試驗表明,開發(fā)的茂金屬支化聚乙烯可用于制造管材和大型中空容器。
The effects of the concentration , the molar ratio of mao to the metallocene c3 or c4 and the polymerization temperature on the polymerization activity were also investigated individually 這為進一步研究兩種催化劑的復(fù)配奠定了基礎(chǔ)。并且發(fā)現(xiàn)在雙亞胺基吡啶鐵配合物與茂金屬復(fù)配時存在共單體效應(yīng)。
A metallocene is a compound typically consisting of two cyclopentadienyl anions (Cp, which is C5H5-) bound to a metal center (M) in the oxidation state II, with the resulting general formula (C5H5)2M. Closely related to the metallocenes are the metallocene derivatives, e.