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Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area;2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support;3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier;4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling;5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene PolymerizationIn this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that:1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS;2.co-mlling time had no obvious effect on the texture of support after 12 hours;3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.
XPS研究结果表明,MAO不仅仅只和乙醇作用,MAO还与MgCl_2本身有一定的作用,这是一个极为重要的发现;3、通过ICP和EDX表征,发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布;4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能,特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化,并且催化剂寿命长,表现出稳定的动力学行为,最终获得了高堆密度(大于0.35g/ml)的球形聚乙烯颗粒;5、本文选择MSPC-5为研究对象,考察了聚合反应参数对催化剂的活性及其聚合物的影响,研究发现:不同的烷基铝对催化剂具有非常重要的影响,特别足TIBA对MSPC-5的助催化活性最高,烷基铝的加入量有一个较佳值,聚合温度为80度时活性最高,H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小;、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨,制备出了一种的新型的氯化镁载体,并将该载体用于多种单活性中心催化剂的负载化研究,研究表明:1、通过BET、XRD的表征,再次证实了MAO与MgCl_2之间具有直接作用,与XPS的研究结果相一致;2、当研磨时间高于12小时时,延长研磨时间对载体的结构没有显著的影响;3、将配合物3负载于共研磨时间不同的一系列载体上,乙烯聚合结果表明,尽管共研磨时间对负载催化剂的活性具有明显的影响,但是它对聚合物的性能以及催化剂的影响不明显。
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Beyonce knowles唱的啊 You need to stop playing round with all them clowns and the wangstas Good girls gotta get down with the gangstas Go head girl put some back and some neck up on it While I stand up in the background and check up on it Ooh Boy you looking like you what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight If you got it, flaunt it, boy I know you want it While I turn around you watch me check up on it Oohhh you watchin me shake it, I see it in ya face 'n' Ya can't take it, it's blazin, you watch me in amazement You can look at it, as long as you don't grab it If you don't go braggin, I'm a let you have it You think that I am teasin, but I ain't got no reason I'm sure that I can please ya, but first I gotta read ya Ooh Boy you looking like you like what you see Won't you come over check up on it (I'm gonna let you work up on it) Ladies let em check up on it (watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight (x2) I can tell you wanna taste it, but I'm gone make you chase it Got to be patient, I like my men patient More patience, you take might get you in more places You can't be abrasive, has to know to pace it If I let you get up on it, you gotta make a promise That you gon put it on me, like no ones put it on me Don't bore me, just show me, all men talk but don't please I can be a tease, but I really wanna please you Ooh Boy you lookin like you like what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight (x2) I'm checking on you boo, do what chu do And while dance I'ma glance at this beautiful view I'm keep my hands in my pants, I need to glue em w/ glue I'm in a trance all eyes on you and your crew Me and my mans don't dance, but to feel ya'll bump and grind If won't hurt if you gone try one time They all hot, but let me see this ones mine Its slim thug and DC outta H town Ohh Boy you looking like you like what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight x4
slimthug,你必须停止玩回合与所有这些小丑与wangstas好女孩gottagetdown 随着gangstas走头女孩把一些背部和颈部一些比它在我站起背景及检查它oohboy你看你喜欢什么,你会看到你不来对清理出来,(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonme今晚如果你有它,炫耀它,男孩我知道你要它当我转身,你看我检查它oohhh你watchin 我摇,我看它在亚面子'n'ya不能把它,它的blazin,你看我一无所有你可以看看,只要你不抓这个问题,如果你不去braggin,我是一个让你如果你觉得我teasin,但我是不会有任何理由,我相信我能请娅但是,我首先gotta阅读娅ooh男孩找你喜欢你喜欢你见到不会你来超过清理它(我gonna让你工作起来就)让各位em检查它沾,流行资讯,twirk它,阻止它, checkonmetonight(x2),我可以告诉你想品尝,但我已离开人世,使你追逐它必须有耐心,我喜欢我的男病人更耐心,你也许可以得到你的地方越来越多,你不能磨料已经知道它的速度,如果我让你起床,那 yougotta做出承诺,你gonputitonme,不一样的说得对我并不负有我,只告诉我,所有男人说话,但不讨人喜欢,我可以戏耍,但是我真的想请你oohboylookin你喜欢你喜欢你见到不会你来对清理出来,(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonmetonight(x2)我查你boo,做什么不楚而舞i'ma一眼这个美丽的看法,我把我的手在我的裤子,我需要胶水emw/胶水我在发呆都看你和你的船员和我我mans不跳舞,但感觉ya'll碰及研磨如果不会伤害如果你去尝试一次他们都热,但让我看到这样的矿井其slimthug直流outtah镇ohhboy你看喜欢你喜欢你见到不会你来清理,那(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonme今晚x4
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Slim Thug You need to stop playing round with all them clowns and the wangstas Good girls gotta get down with the gangstas Go head girl put some back and some neck up on it While I stand up in the background and check up on it Ooh Boy you looking like you what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight If you got it, flaunt it, boy I know you want it While I turn around you watch me check up on it Oohhh you watchin me shake it, I see it in ya face 'n' Ya can't take it, it's blazin, you watch me in amazement You can look at it, as long as you don't grab it If you don't go braggin, I'm a let you have it You think that I am teasin, but I ain't got no reason I'm sure that I can please ya, but first I gotta read ya Ooh Boy you looking like you like what you see Won't you come over check up on it (I'm gonna let you work up on it) Ladies let em check up on it (watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight (x2) I can tell you wanna taste it, but I'm gone make you chase it Got to be patient, I like my men patient More patience, you take might get you in more places You can't be abrasive, has to know to pace it If I let you get up on it, you gotta make a promise That you gon put it on me, like no ones put it on me Don't bore me, just show me, all men talk but don't please I can be a tease, but I really wanna please you Ooh Boy you lookin like you like what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight (x2) I'm checking on you boo, do what chu do And while dance I'ma glance at this beautiful view I'm keep my hands in my pants, I need to glue em w/ glue I'm in a trance all eyes on you and your crew Me and my mans don't dance, but to feel ya'll bump and grind If won't hurt if you gone try one time They all hot, but let me see this ones mine Its slim thug and DC outta H town Ohh Boy you looking like you like what you see Won't you come over check up on it,(I'm gonna let you work up on it) Ladies let em check up on it,(watch it while he check up on it) Dip it, pop it, twirk it, stop it, check on me tonight x4
slimthug,你必须停止玩回合与所有这些小丑与wangstas好女孩gottagetdown 随着gangstas走头女孩把一些背部和颈部一些比它在我站起背景及检查它oohboy你看你喜欢什么,你会看到你不来对清理出来,(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonme今晚如果你有它,炫耀它,男孩我知道你要它当我转身,你看我检查它oohhh你watchin 我摇,我看它在亚面子'n'ya不能把它,它的blazin,你看我一无所有你可以看看,只要你不抓这个问题,如果你不去braggin,我是一个让你如果你觉得我teasin,但我是不会有任何理由,我相信我能请娅但是,我首先gotta阅读娅ooh男孩找你喜欢你喜欢你见到不会你来超过清理它(我gonna让你工作起来就)让各位em检查它沾,流行资讯,twirk它,阻止它, checkonmetonight(x2),我可以告诉你想品尝,但我已离开人世,使你追逐它必须有耐心,我喜欢我的男病人更耐心,你也许可以得到你的地方越来越多,你不能磨料已经知道它的速度,如果我让你起床,那 yougotta做出承诺,你gonputitonme,不一样的说得对我并不负有我,只告诉我,所有男人说话,但不讨人喜欢,我可以戏耍,但是我真的想请你oohboylookin你喜欢你喜欢你见到不会你来对清理出来,(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonmetonight(x2)我查你boo,做什么不楚而舞i'ma一眼这个美丽的看法,我把我的手在我的裤子,我需要胶水emw/胶水我在发呆都看你和你的船员和我我mans不跳舞,但感觉ya'll碰及研磨如果不会伤害如果你去尝试一次他们都热,但让我看到这样的矿井其slimthug直流outtah镇ohhboy你看喜欢你喜欢你见到不会你来清理,那(我gonna让你工作起来就)让各位em察看着它,沾,流行资讯,twirk它,阻止它, checkonme今晚x4
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In Shreveport, where 800 workers work on a single-shift building Hummer H3 and H3T models, there was relief that a new buyer would keep the line running for at least a while longer.
在什里夫波特, 800名工人在那里工作的一个移位建设悍马H3和H3T模式,有一个新的救济买方将保持其线运行,至少一段时间。
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Lotus has already unveiled its new Evora, but rather than sitting still with this car, work on the new Elise and Esprit is already well underway at the company's Hethel engineering center in the UK.
莲花已经推出了新的埃武拉,而是比坐在仍然存在,这是新车,工作的新Elise和思哲已顺利进行在公司Hethel工程研究中心在英国。
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Geisel Library compels those who come into contact with its strong forms to reflect on the potential of a creative mind at work.
geisel图书馆迫使那些接触到其强大的形式的人,在工作中反映对潜在的创意的思维。
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Relatively little is known about Amenhotep's temple, since it was dismantled when Hatshepsut (1479-1457 BC) started work on her own mortuary complex at Deir el-Bahari.
相对知之甚少阿蒙霍特普的寺庙,因为它被拆除时,哈特谢普苏特(公元前1479年至1457年)开始巴哈里工作,她自己复杂的太平间在德尔巴拉。
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Although my cancer experience seems to benefit and inspire many people, I am enriched and empowered talking with people who are just beginning cancer treatment. On February 11, 1994 - the third anniversary of my remission - I received a call at work from the CanSurmount director. She wanted to know if I would counsel another patient with my diagnosis - Jacqueline Kennedy Onassis.
虽然我的经验帮助并鼓励了许多人,但是,同那些刚刚开始癌症治疗的人谈话,也使我获得了力量。1994年2月11日,也就是我患癌症后幸存下来的三周年纪念日,我接到了克服癌症工作小组主管的电话,她想知道我是否可以我的诊断经验来劝告另一位癌症患者——杰奎琳。
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Recalling the ILO Declaration on Fundamental Principles and Rights at Work, 1998, and
忆及1998年《国际劳工组织工作中的基本原则和权利宣言》,并
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Lodi News-Sentinel - After nearly four decades of working at the Lodi Electric Utility, Jess Kerekes will finally have time to work on his vintage automobiles.
洛新闻哨兵-经过近4 0年的工作,在洛电力事业, j essk erekes会终于有时间去工作,对他的怀旧汽车。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。