標(biāo)題: Titlebook: Metalorganic Catalysts for Synthesis and Polymerization; Recent Results by Zi Walter Kaminsky Conference proceedings 1999 Springer-Verlag B [打印本頁] 作者: 重要 時間: 2025-3-21 16:49
書目名稱Metalorganic Catalysts for Synthesis and Polymerization影響因子(影響力)
書目名稱Metalorganic Catalysts for Synthesis and Polymerization影響因子(影響力)學(xué)科排名
書目名稱Metalorganic Catalysts for Synthesis and Polymerization網(wǎng)絡(luò)公開度
書目名稱Metalorganic Catalysts for Synthesis and Polymerization網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Metalorganic Catalysts for Synthesis and Polymerization被引頻次
書目名稱Metalorganic Catalysts for Synthesis and Polymerization被引頻次學(xué)科排名
書目名稱Metalorganic Catalysts for Synthesis and Polymerization年度引用
書目名稱Metalorganic Catalysts for Synthesis and Polymerization年度引用學(xué)科排名
書目名稱Metalorganic Catalysts for Synthesis and Polymerization讀者反饋
書目名稱Metalorganic Catalysts for Synthesis and Polymerization讀者反饋學(xué)科排名
作者: 金桌活畫面 時間: 2025-3-21 20:46 作者: Gnrh670 時間: 2025-3-22 04:04 作者: Intend 時間: 2025-3-22 05:34
P. Galli,G. Cecchin,J. C. Chadwick,D. Del Duca,G. Vecellioown rice produced in several areas of Fukushima Prefecture has exceeded a provisional regulation value. Therefore, we attempted research on decreasing the radiocesium concentration in agricultural plants..To decrease the concentration of radiocesium in brown rice, we investigated the effect of the a作者: SOB 時間: 2025-3-22 10:15
Norio Kashiwa,Shin-ichi Kojoh,Jun-ichi Imuta,Toshiyuki Tsutsuiigantic tsunami, which resulted in a severe accident that extended over multiple reactors simultaneously. In the present chapter the current status of the accident is described in terms of basic information, sequences of the accident, fission products (FP) released, and lessons learned. Although som作者: 侵略主義 時間: 2025-3-22 13:16
Tominaga Keii,Teruo Matsuzawa, or particle beams. Studies that primarily involve pathogenesis, volume effects, and retreatment are covered in other chapters. The potential radioprotectors or enhancers that were investigated include ramipril, PDGF, IGF-1, methotrexate, WR-2721, dexamethasone, AZQ, and fludarabine. Study flaws we作者: 食物 時間: 2025-3-22 20:51
Kazuo Soga,Eiichi Kaji,Toshiya Uozumipaired model where the retreatment effect is modeled as a fraction of the initial dose that is repaired or recovered before the retreatment dose. This model describes the data well in several rodent studies. Questions that arise are: is there a delay before repair begins; is the total repair or rate作者: 施舍 時間: 2025-3-22 23:17
Polyethylene: Polymer with Futureing easily accessible, reasonable raw materials, they are environmentally harmless, and they can be recycled or energetically exploited after loss of performance. However, the most important aspect is, that they can be tailored in an excellent way using well established modern, energy saving, and no作者: ectropion 時間: 2025-3-23 01:38 作者: Ornithologist 時間: 2025-3-23 09:04 作者: Brittle 時間: 2025-3-23 12:27
An Absolute Test of Rival Theories for MWDs in Heterogeneous Polymerization-MWDs during Quasi-Living them, the importance of the transitional behavior of MWDs during the quasi-living stage of polymerization is emphasized. Based upon the different mechanisms, all the rival theories have been constructed so as to explain the broad MWDs at the stationary state. Therefore, all competing rate processes作者: craven 時間: 2025-3-23 15:12 作者: Synapse 時間: 2025-3-23 19:23
Kinetics and Mechanism of Ethylene Polymerization and Copolymerization Reactions with Heterogeneous r-Natta catalyst shows a number of kinetic features which are interpreted as a manifestation of multi-site catalysis. The catalyst contains several types of active centers which differ in stability and formation rates, the molecular weights of polymer molecules they produce and in their response to 作者: faction 時間: 2025-3-23 23:26 作者: Substance-Abuse 時間: 2025-3-24 03:50
Energy Distribution of Active Sites in Heterogeneous Ziegler-Natta Catalysts. Method of Study of Act desorption (TPD) products from the catalyst surface at initial stages of olefin polymerization (up to 10 – 15 monomer units in chain). The method allows to obtain the information concerning the energy non-uniformity of active sites in terms of a distribution of active sites over activation energy o作者: monopoly 時間: 2025-3-24 10:04
Ziegler-Natta and Metallocene Polymerisation of Olefins with Heterogeneous Catalysts Cp.ZrCl. or Et(Ind).ZrCl. — heterogeneous metallocene complexes are produced. The activities of these catalysts in ethylene or propylene polymerisation are as high as the activities known of similar homogeneous catalyst systems with MAO as cocatalyst. The reaction of AlMe. with montmorillonite and 作者: 信條 時間: 2025-3-24 11:59 作者: Fracture 時間: 2025-3-24 18:08 作者: endocardium 時間: 2025-3-24 22:34 作者: 總 時間: 2025-3-25 02:17 作者: 平躺 時間: 2025-3-25 05:07
Alumoxanes alternative to MAO: Synthesis and characterization4-trimethylpentyl). (TIOA). Alumoxanes were prepared by reacting TIOA and H.O with different molar ratios. .H NMR spectra of these products are characterized by the presence of broad bands and of resolved multiplets. Their relative amount in the region between 1.9 and 2.5 ppm was identified as the “作者: MUTED 時間: 2025-3-25 09:06
New C1-Symmetric Metallocenes for the Polymerization of Olefins) [PhMe.PenFlu)]ZrCl., were compared. The zirconocene (III) is more stereorigid than (I) and (II) and, therefore, has special properties. At a polymerization temperature of 30 °C, (I) in combination with MAO exhibits the highest activity of 7500 kg PP/(mol Zrh*c.), which is about 5 times higher than作者: 冷峻 時間: 2025-3-25 13:19
New Catalyst Concepts for the Polymerization of Ethylene with Metallocenesium tetrakis(pentafluorophenyl)borate (Me.PhNH·B(C.F.).)/triisobutylaluminum (i-Bu.Al) or methylaluminoxane (MAO) produced a high molecular weight polyethylene with a high activity at high temperatures. The molecular weight of the polyethylene was significantly decreased with an increase in the conc作者: 刺激 時間: 2025-3-25 19:17 作者: 消音器 時間: 2025-3-25 21:44
Metalorganic Catalysts for Synthesis and Polymerization978-3-642-60178-1作者: 諷刺 時間: 2025-3-26 00:08
d dose assessment among residents. These reports present a wide range of findings from the research carried out in a variety of activities by large governmental organizations as well as by small private groups and individuals. The reader thus will find a large collection of valuable and interesting 作者: 鞏固 時間: 2025-3-26 05:10 作者: 芭蕾舞女演員 時間: 2025-3-26 10:22
L. L. B?hm,J. Berthold,H.-F. Enderle,M. Fleissnera in the reverse estimation method from outside the plant. The estimated release amount of .I is of the order of 120–160 PBq and that of .Cs is of the order of 8–15 PBq for both estimations. Lessons learned from the accident identified by the investigation committees cover a wide spectrum of insuffi作者: micronutrients 時間: 2025-3-26 14:00 作者: 缺乏 時間: 2025-3-26 16:49
Norio Kashiwa,Shin-ichi Kojoh,Jun-ichi Imuta,Toshiyuki Tsutsuia in the reverse estimation method from outside the plant. The estimated release amount of .I is of the order of 120–160 PBq and that of .Cs is of the order of 8–15 PBq for both estimations. Lessons learned from the accident identified by the investigation committees cover a wide spectrum of insuffi作者: 前面 時間: 2025-3-26 20:57 作者: APEX 時間: 2025-3-27 02:13
Kazuo Soga,Eiichi Kaji,Toshiya Uozumiof RM was predicted to be 4% when the retreatment dose is 44 Gy in 2.2 Gy fractions after the initial dose of the same regimen. The Nieder algorithm for retreatment in humans is endorsed. In immature animals, damage recovery appears to be faster and more complete than in adults.作者: 流眼淚 時間: 2025-3-27 05:36
Yury V. Kissin,Robert I. Mink,Thomas E. Nowlin,Anita J. Brandolini作者: 極小量 時間: 2025-3-27 12:58 作者: 公司 時間: 2025-3-27 14:24 作者: Aprope 時間: 2025-3-27 18:54
Hansj?rg Sinn,Ingrid Schimmel,Mathias Ott,Norbert von Thienen,Annette Harder,Wiebke Hagendorf,Bernd 作者: palpitate 時間: 2025-3-27 21:56
Helge Wessel,Axel Herzog,Peihua Yu,Herbert W. Roesky作者: 玉米棒子 時間: 2025-3-28 06:07
Ivan I. Zakharov,Vladimir A. Zakharov,Georgii M. Zhidomirov作者: expire 時間: 2025-3-28 07:03
T. Dall’Occo,M. Galimberti,I. Camurati,M. Destro,O. Fusco,D. Brita作者: 翅膀拍動 時間: 2025-3-28 12:38 作者: PANT 時間: 2025-3-28 16:36
An Absolute Test of Rival Theories for MWDs in Heterogeneous Polymerization-MWDs during Quasi-Livingval theories are invalid. To understand this situation, a new theory of non-uniform sites not only with propagation but also slightly with transfer rate is proposed. The non-uniformity that conforms to a popular kinetic model gives a unified explanation about the abnormal decay kinetics recognized i作者: 字謎游戲 時間: 2025-3-28 22:27
Kinetics and Mechanism of Ethylene Polymerization and Copolymerization Reactions with Heterogeneous in the literature yet: (a) formation of deuterated ethylenes in ethylene homopolymerization reactions in the presence of deuterium, and (b) an apparently increased reactivity of α-olefins in chain initiation reactions involving the Ti-H bond. Both effects were confirmed experi-mentally.作者: Abduct 時間: 2025-3-29 02:06 作者: 發(fā)出眩目光芒 時間: 2025-3-29 06:21 作者: ELUC 時間: 2025-3-29 08:56
A DFT quantum-chemical study of the structures and reactive sites of polymethylalumoxanea Al-O dative bond and the formation of acidic tricoordinated Al-atoms and basic dicoordinated O-atoms in the MAO molecule. Two molecules of AlMe. are associated with these sites. The total heat of the TMA interaction with MAO depends on the n value and the MAO structure. The reactive sites of MAO are proposed based on the obtained data.作者: Inflamed 時間: 2025-3-29 11:24
Conference proceedings 1999e compounds have not lost their fascination. The birthday of Karl Ziegler, the great pioneer in this metalorganic catalysis, is now 100 years ago. Polyolefins and polydienes produced by Ziegler-Natta catalysis are the most important plastics and elastomers. New impulses for the polymerization of ole作者: MIME 時間: 2025-3-29 17:53 作者: Osmosis 時間: 2025-3-29 23:34 作者: cancer 時間: 2025-3-30 02:27
New insight into propene polymerization promoted by heterogeneous Ziegler-Natta catalystsophisticated models of chain propagation applicable for the first time in a statistically significant manner. In this presentation, the most recent applications to ?high-yield? MgCl.-supported Ziegler-Natta catalysts are illustrated作者: HAWK 時間: 2025-3-30 04:13 作者: 遭遇 時間: 2025-3-30 08:37 作者: 移植 時間: 2025-3-30 16:00 作者: 課程 時間: 2025-3-30 20:17
Polypropylene: 44 Years Young! The Challenge for the 21st Century as high as those obtained with previous catalysts. The achievement of a better control of the polymer structure has resulted in an increased capability to tailor the products according to the performance requirements, both in the conversion technologies and in the application life cycle, as well as to extend their application to new market areas.作者: 煤渣 時間: 2025-3-30 21:43 作者: 豎琴 時間: 2025-3-31 01:57 作者: 矛盾 時間: 2025-3-31 05:42
up-to-date research results are very important to the scien45 years after the discovery of transition metals and organometallics as cocatalysts for the polymerization of olefins and for organic synthesis, these compounds have not lost their fascination. The birthday of Karl Ziegler, the great pione作者: 加強防衛(wèi) 時間: 2025-3-31 11:03 作者: Affluence 時間: 2025-3-31 16:07
http://image.papertrans.cn/m/image/631626.jpg作者: 打火石 時間: 2025-3-31 20:19
Expanding the Scope of Metallocene Catalysis: Beyond Indenyl and Fluorenyl DerivativesGroup 4 metallocenes with bridged and substituted Ind and Cp/Flu ligands have produced high-molecular-weight isotactic (I-PP), syndiotactic (S-PP), atactic (A-PP) and hemi-isotactic (HIT-PP) (Scheme 1) polypropylenes..
