Further, every resultant is clearly traceable in its components, because these are homogeneous and commensurable.

簡單來說 emergent的概念主要是用來區(qū)分於resultant，應(yīng)用上是單純的總和或差量不可預(yù)測的變量的表述久久久精品按摩店日韩。

New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene PolymerizationFacile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that:1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.

本工作的新貢獻如下：(1)模特屄视频、球形氯化鎂負載后過渡金屬催化荊催化乙烯聚合本文將配合物2，3-雙(2综合干狼人综合首页亚洲，6-二異丙基苯亞胺)丁烷二溴化鎳(1)和配合物2日韩真实性爱高清一区二区，6-二[1-(2，4AAA欧美色吧激情视频，6-三甲基苯亞胺)乙基]吡啶二氯化鐵(2)分別直接負載于經(jīng)不同熱脫醇溫度處理的球形氯化鎂載體上超碰在线免费试频，研究了氯化鎂載體的脫醇溫度對負載化后過渡金屬催化劑及其聚合物的影響，研究表明：1野花官方app、通過對球形MgCl_2·2.56C_2H_5OH載體進行熱脫醇處理人人澡人人玩人人爽欧美一区，可以獲得合適機械強度成年女性特黄午夜视频免费看、較高比表面積和較高孔隙度的球形氯化鎂載體；291粉嫩人妻在线网站、BET国产黄片视频免费在线观看，XRD，IR中文字幕在线观看视频网站，SEM国产在线真人视频免费，GPC和DSC研究表明，脫醇溫度極大地影響負載后過渡金屬催化劑的活性和聚合物的性能谁有黄色网址十八岁禁止。

New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene Polymerization Facile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that: 1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.

本工作的新貢獻如下：(1)亚洲AAA无码视频、球形氯化鎂負載后過渡金屬催化荊催化乙烯聚合本文將配合物2，3-雙(2网站你懂在线观看亚洲国产精选，6-二異丙基苯亞胺)丁烷二溴化鎳(1)和配合物2国产大学生A片三区在线，6-二[1-(2，4色综合久久久久久久久五月，6-三甲基苯亞胺)乙基]吡啶二氯化鐵(2)分別直接負載于經(jīng)不同熱脫醇溫度處理的球形氯化鎂載體上久久精品日本3级视频，研究了氯化鎂載體的脫醇溫度對負載化后過渡金屬催化劑及其聚合物的影響，研究表明： 1欧美精品亚洲人成在线观看、通過對球形MgCl_2·2.56C_2H_5OH載體進行熱脫醇處理，可以獲得合適機械強度99久久影院亚洲精品图片、較高比表面積和較高孔隙度的球形氯化鎂載體黄片,男女大片,一级毛片,国产三级片； 2、BET狼友视频在线观看免费，XRD美国一级理论片在线看免费，IR，SEM黄色毛片精品尿尿视频，GPC和DSC研究表明中文字幕第38页永久乱码，脫醇溫度極大地影響負載后過渡金屬催化劑的活性和聚合物的性能。

If only the interatomic force are considered, atomic stress amounts to the potential density in the resultant force field generated by the neighboring atoms, and atomic elastic constants equals to the potential density increment in the same resultant force field.

如果只考慮原子間作用力的影響裸体美女无遮挡免费视频a，原子應(yīng)力等于該原子在周圍鄰域原子合成張量力場中的勢能密度又大又长又粗的国产毛片视频，原子彈性常數(shù)等于發(fā)生單位應(yīng)變時原子在鄰域原子合成力場中勢能密度的增量。

The gear double-faced joggle instrument is the special system to measure the errors of the radial resultant error for one gear and the radial resultant error for one tooth of a gear.

齒輪雙面嚙合檢查儀是檢測齒輪徑向綜合誤差ΔF"和齒輪一齒徑向綜合誤差Δf"i的傳統(tǒng)儀器黄色网站黄色片免费。

By analyzing the mass spectrum of reaction resultant, it estimates the components of the resultant and researches the reaction mechanism.

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Exploration is done to the relationship of cot structure,cot rigidity to evenness of the resultant yarn and yarn strength;relationship of cot rigidity to friction factor and linear width of nipper jaws;relationship of cot diameter and telescoping tolerance to quality of resultant yarn .

闡述了膠輥結(jié)構(gòu)国语对白人人操,人人曰、硬度與成紗條干、強力的關(guān)系欧美精品久久久久久久久，膠輥硬度與摩擦因數(shù)女女激情毛片、鉗口線寬度的關(guān)系；膠輥直徑、套差與成紗質(zhì)量的關(guān)系高清日韩精品更新视频；分析了低硬度膠輥改善成紗條干的機理欧美最新精品视频在线，指出膠輥制作中必須注意的問題及紡紗工藝配置。

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研究結(jié)果表明特级女同一级毛片，MAO不僅僅只和乙醇作用www.毛片，MAO還與MgCl_2本身有一定的作用，這是一個極為重要的發(fā)現(xiàn)综合一区,二区；3国产在线精品免费、通過ICP和EDX表征，發(fā)現(xiàn)載體的脫醇溫度直接影響著元素在固體催化劑中的含量及分布国产原创精品在线观看；4www.在线黄片.com、脫醇溫度極大地影響著負載苯氧基亞胺類催化劑的活性和聚合物的性能，特別是原始載體經(jīng)160℃活化4小時制備得到的固體催化劑MSPC-5的活性明顯高于其他脫醇溫度條件下制得的固體催化欧美色图图区，并且催化劑壽命長www.欧美色图.com，表現(xiàn)出穩(wěn)定的動力學(xué)行為，最終獲得了高堆密度(大于0.35g／ml)的球形聚乙烯顆粒91精品国产丝袜在线国语；5A级毛片毛片免费、本文選擇MSPC-5為研究對象，考察了聚合反應(yīng)參數(shù)對催化劑的活性及其聚合物的影響国产AV永久福利资源网站，研究發(fā)現(xiàn)：不同的烷基鋁對催化劑具有非常重要的影響中文字字幕在线，特別足TIBA對MSPC-5的助催化活性最高，烷基鋁的加入量有一個較佳值51久久综合狠狠综合久久综合，聚合溫度為80度時活性最高午夜男人一级毛片，H_2的加入使催化劑的活性明顯降低且聚合物的分子量也減小亚洲Av中文在线第一页；中文字幕网站免费看A片在线、新型氯化鎂載體負載單活性中心催化劑催化乙烯聚合本文創(chuàng)造性采用固體MAO與無水氯化鎂直接進行共研磨，制備出了一種的新型的氯化鎂載體igao视频为爱找点刺激，并將該載體用于多種單活性中心催化劑的負載化研究欧美中文字幕淫乱视频，研究表明：1、通過BET69pao国产成永久免费视、XRD的表征外国操逼视频网站，再次證實了MAO與MgCl_2之間具有直接作用，與XPS的研究結(jié)果相一致四川一级毛片美女；2黄大片视频在线观看大片、當(dāng)研磨時間高于12小時時，延長研磨時間對載體的結(jié)構(gòu)沒有顯著的影響综合婷婷色色；3黄色免费视色、將配合物3負載于共研磨時間不同的一系列載體上免费在线综合，乙烯聚合結(jié)果表明，盡管共研磨時間對負載催化劑的活性具有明顯的影響国产原创中文在线观看视频，但是它對聚合物的性能以及催化劑的影響不明顯日韩高清成人免费播放视频网站大全。

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 Polymerization In 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.

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As to the high polarity, high boiling point resultant—trimesic acid, the analysis methods of infrared spetrum, gas chromatography-mass spectroscopy, vapour-phase chromatography, acid number titration and so on are seperately used to characterize its property. Infrared spetrum and gas chromatography-mass spectroscopy are used to have a qualitative analysis on the resultant and are compared with the stand diagram. Sulfuric acid-methanol esterification and rapid esterification are used to prepare the trimesic acid trimethyl-ester and have a FID quantitative analysis. So that we make sure the purity of trimesic acid in the resultant and also we have an acid alkali titration on the resultant to get its acid number, in order to verify the purity of trimesic acid in the resultant.

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