【摘 要】
：
The condensation of acetylacetone (CH3COCH2COCH3) with benzdine(H2N-C6H4-C6H4-NH2) yielded diimine ligand 1 [HOC(Me)C(H)(Me)C=N(p-C6H4)(C6H4-p)N=C(Me)C(H)C(Me)O
【机 构】
：
Department of Chemical Engineering Institute of United Chemical Reaction Engineering
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
The condensation of acetylacetone (CH3COCH2COCH3) with benzdine(H2N-C6H4-C6H4-NH2) yielded diimine ligand 1 [HOC(Me)C(H)(Me)C=N(p-C6H4)(C6H4-p)N=C(Me)C(H)C(Me)OH)],which was converted into sodium salts.And then the sodium salts reacted with monosalicylaldiminato titanium complex 2{[3,5-di-Bu'-240)C6H2CHN(PH)]TiCl3(THF)} in dried dichloromethane to give a new benzdine-bridged binuclear complex 3{[3,5-di-Bu'-2-(O)C6H2CHN(PH)]2[OC(Me)C(H)(Me)C=N(p-C6H4)-(C6H4-p)N=C(Me)C(H)C(Me)]Ti2Cl4}.The complex 3 was characterized by 1HNMR and elemental analysis.In the presence of MAO(methylaluminoxane),the complex 3 in toluene was effective to catalyze polymerization,affording moderately high catalytic high temperature gel permeation chromatography (GPC) curve of polyethylene obtained revealed a single peak,but the molecular weight distribution (MWD=3.21) is obviously broader than that of the similar mononuclear titanium complex.The melting points of the obtained polyethylene reaches 138 ℃,indicating that the polyethylene is of high crystallinity.
其他文献
准确可靠的光学浓度变送器,可以提高细小纤维的留着率,提高卫生纸抄造过程中的纤维得率、减低成本,提高产品质量.
由于环境对含氯漂白剂使用的限制,过氧化氢用于化学浆的漂白越来越受到关注。本文主要讨论了杉木化学浆的H2O2漂白的工艺条件,即漂白时间、温度、H2O2用量对纸浆白度、返黄值
本方法涉及卫生纸中微生物污染技术的改进,具体涉及一种化学方法对微生物进行的污染物消毒处理,可彻底消除卫生纸中的致病菌微生物的污染,有效地控制微生物对人类健康的威胁,
通过在线自动控制传感器技术,在造纸生产中的应用,介绍其设备自动控作用和效果。
Through the on-line automatic control of sensor technology, the application in paper
研究了添加Zr元素对快淬(Nd,Pr)10.5Fe81.5-ZrxCo2B6(x=0,0.5,1.0,1.5,2.0,2.5)合金显微组织结构和磁性x能的影响,用AFM观察了合金条带自由表面的显微结构。结果表明:添加Zr
研究了在高气压、大体积、泵浦功率1.395 9 MW·cm-3抽运下, 产生的XeCl*准分子激光光谱, 波段307.7～308.5 nm, 结果显示有两个谱线峰值307.98和308.19 nm, 谱线最强的跃迁是B
在Expression Blend4中，对象的拖放可在设计视图下实现，也可用程序代码实现。但是，拖放到目标位置附近后，如果要求具有吸附效果，以实现准确定位，就必须利用程序代码。文章给出了拖
饮水安全直接关系到广大人民群众的健康,莆田市加强农村饮水安全建设工作,采取强化领导,明确职责；强化工程建设和管理；强化饮用水水源保护和环境综合治理的做法,成效显著,基本
Er3+/Yb3+-codoped TeO2-ZnO-BaO-La2O3 tellurite glass fiber was fabricated by rotation and rod-in-tube technologies. The ther-mal stability and optical refractiv
The alteration of surface properties of chalcopyrite after biological conditioning with Acidithiobacillus ferrooxidans and Acidithiobacillus caldus was evaluate