Neodymium;octanoic acid | 79321-04-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Neodymium;octanoic acid
• 英文别名: neodymium;octanoic acid
• CAS: 79321-04-3
• 化学式: C8H16NdO2
• 分子量: 288.45
• InChiKey: NQTMRCQKIMVLOT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.43
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

文献信息

• Metal complex compositions and their use as catalysts to produce polydienes
  申请人：Thiele K-H Sven

  公开号：US20050090383A1

  公开（公告）日：2005-04-28

  This invention relates to metal complex compositions, their preparation and their use as catalysts to produce polymers of conjugate dienes through polymerization of conjugated diene monomers. The used metal complex compositions are transition metal compounds in combination with an activator compound, optionally with a transition metal halide compound and optionally a catalyst modifier and optionally an inorganic or organic support material. The metal complexes comprises metals of group 3 to 10 of the Periodic System of the Elements in combination with activators, and optionally transition metal halide compounds of groups 3 to 10 of the Periodic Table of the Elements including lanthanide metals and actinide metals and optionally, catalyst modifiers, especially Lewis acids and optionally an inorganic or organic support material. More in particular the invention relates metal complex compositions, their preparation and their use as catalysts to produce homopolymers of conjugated dienes, preferably, but not limited to, through polymerization of 1,3-butadiene or isoprene.

  本发明涉及金属配合物组合物、它们的制备以及它们作为催化剂的用途，通过共轭二烯单体的聚合来产生共轭二烯聚合物。所使用的金属配合物组合物是转移金属化合物与活化剂化合物的组合，可选地与转移金属卤化物化合物和可选的催化剂改性剂以及无机或有机支撑材料组合使用。金属配合物包括元素周期表中3到10组的金属与活化剂组合，可选地包括元素周期表中3到10组的金属卤化物，包括镧系金属和锕系金属，可选地包括催化剂改性剂，特别是路易斯酸，以及可选的无机或有机支撑材料。更具体地，本发明涉及金属配合物组合物、它们的制备以及它们作为催化剂的用途，用于生产共轭二烯的同聚物，优选但不限于通过1,3-丁二烯或异戊二烯的聚合。
• Synthetic polyisoprene rubber
  申请人：Halasa Farhan Adel

  公开号：US20050137338A1

  公开（公告）日：2005-06-23

  The neodymium catalyst system prepared by the technique of this invention can be used in the polymerization of isoprene monomer into synthetic polyisoprene rubber having an extremely high cis-microstructure content and high stereo regularity. This polyisoprene rubber will crystallize under strain and can be compounded into rubber formulations in a manner similar to natural rubber. This invention more specifically discloses a process for preparing a neodymium catalyst system which comprises ( 1 ) reacting a neodymium carboxylate with an organoaluminum compound in an organic solvent to produce neodymium-aluminum catalyst component, and ( 2 ) subsequently reacting the neodymium-aluminum catalyst component with an elemental halogen to produce the neodymium catalyst system. The present invention further discloses a synthetic polyisoprene rubber which is comprised of repeat units that are derived from isoprene, wherein the synthetic polyisoprene rubber has a cis-microstructure content which is within the range of 98.0% to 99.5%, a 3,4-microstructure content which is within the range of 0.5% to 2.0%, and a trans-microstructure content which is within the range of 0.0% to 0.5%.

  本发明所制备的钕催化剂体系可用于异戊二烯单体的聚合，制备出具有极高顺式微结构含量和高立体规则性的合成聚异戊二烯橡胶。这种聚异戊二烯橡胶在受力时会结晶，并可像天然橡胶一样混合成橡胶配方。本发明更具体地揭示了一种制备钕催化剂体系的方法，包括（1）在有机溶剂中将钕羧酸盐与有机铝化合物反应，生成钕铝催化剂组分，（2）随后将钕铝催化剂组分与元素卤素反应，制备钕催化剂体系。本发明还揭示了一种合成聚异戊二烯橡胶，其由异戊二烯衍生的重复单元组成，其中合成聚异戊二烯橡胶的顺式微结构含量在98.0％至99.5％的范围内，3,4-微结构含量在0.5％至2.0％的范围内，反式微结构含量在0.0％至0.5％的范围内。
• Group III-B metal catalyst system
  申请人：Hsu Wen-Liang

  公开号：US20060020090A1

  公开（公告）日：2006-01-26

  The subject invention relates to a process for preparing a catalyst system that comprises the sequential steps of (I) reacting an organometalic compound that contains a metal from Group III-B of the Periodic System with an organoaluminum compound at a temperature which is within the range of 50° C. to 100° C. to produce an aluminum modified Group III-B metal containing catalyst component, and (II) mixing the aluminum modified Group III-B metal containing catalyst component with a halogen containing compound to produce the Group III-B metal containing catalyst system, wherein the catalyst system is void of compounds selected from the group consisting of aliphatic alcohols, cycloaliphatic alcohols, aliphatic thiols, cycloaliphatic thiols, trialkyl silanols, and triaryl silanols, wherein the organometalic compound that contains a metal from Group III-B of the Periodic System is reacted with the organoaluminum compound in the absence of conjugated diene monomers, and wherein the catalyst system is prepared in the absence of compounds that contain labile halogen atoms.

  本发明涉及一种制备催化剂系统的方法，包括以下步骤：（I）在50℃到100℃的温度范围内，将含有III-B族金属的有机金属化合物与有机铝化合物反应，以产生经铝改性的III-B族金属催化剂组分；（II）将经铝改性的III-B族金属催化剂组分与含卤素化合物混合，以产生III-B族金属催化剂系统；其中，该催化剂系统不含以下化合物：脂肪醇，环脂肪醇，脂基硫醇，环脂基硫醇，三烷基硅醇和三芳基硅醇；所述含有III-B族金属的有机金属化合物在缺乏共轭二烯单体的情况下与有机铝化合物反应；所述催化剂系统在不含有含不稳定卤素原子的化合物的情况下制备。
• Method of making a functionalized elastomer
  申请人：The Goodyear Tire & Rubber Company

  公开号：US10301400B2

  公开（公告）日：2019-05-28

  The present invention is directed to a method of making a functionalized elastomer, comprising the step of polymerizing monomers comprising a conjugated diene monomer in the presence of a lathanide-based coordination polymerization catalyst activated with a magnesium compound of formula 1 where R1 is phenylene, or a linear or branched alkane diyl group containing 2 to 10 carbon atoms, or a combination of one or more phenylene groups and one or more linear or branched alkane diyl groups containing 1 to 10 carbon atoms; Q is of formula 2 or 3 where R2 is phenyl, or a linear or branched alkyl group containing 2 to 10 carbon atoms; where R3 and R4 are independently phenyl or a linear or branched alkyl group containing 1 to 10 carbon atoms, or R2 and R3 taken together with the nitrogen atom represent a nitrogen containing heterocyclic group containing from 4 to 12 carbon atoms.

  本发明涉及一种制备功能化弹性体的方法，包括在镧系配位聚合催化剂的存在下，通过聚合包含共轭二烯单体的单体，并利用公式1的镁化合物激活。其中，公式1中R1为苯基，或含有2至10个碳原子的线性或支链烷二基团，或一个或多个苯基团和一个或多个含有1至10个碳原子的线性或支链烷二基团的组合；Q为公式2或3中的一种，其中R2为苯基，或含有2至10个碳原子的线性或支链烷基团；R3和R4分别为苯基或含有1至10个碳原子的线性或支链烷基团，或R2和R3与氮原子一起代表含有4至12个碳原子的含氮杂环基团。
• Inverse phase polymerization
  申请人：THE GOODYEAR TIRE & RUBBER COMPANY

  公开号：EP0336874A1

  公开（公告）日：1989-10-11

  It is sometimes advantageous to disperse crystalline polymers throughout rubbery elastomers. For instance, the cold flow characteristics and green strength of polydiene rubbers can be improved by dispersing syndiotactic-1,2-polybutadiene therein. This invention discloses a process for preparing a highly dispersed blend of a crystalline polymer in a rubbery elastomer which comprises (1) polymerizing at least one diene monomer in an organic solvent under solution polymerization conditions to form a polymer cement of the rubbery elastomer in the organic solvent, (2) polymerizing additional monomers in the polymer cement into the crystalline polymer to form a rubbery cement having the crystalline polymer dispersed therein, and (3) recovering the highly dispersed blend of the crystalline polymer in the rubbery elastomer from the organic solvent in the rubber cement.

  有时，将结晶聚合物分散到橡胶弹性体中会带来好处。例如，通过在聚二烯橡胶中分散辛二烯-1,2-聚丁二烯，可以改善聚二烯橡胶的冷流特性和生坯强度。本发明公开了一种在橡胶弹性体中制备高度分散的结晶聚合物混合物的工艺，该工艺包括 (1) 在溶液聚合条件下，在有机溶剂中聚合至少一种二烯烃单体，在有机溶剂中形成橡胶弹性体的聚合物胶结物、(2) 将聚合物胶结物中的其他单体聚合到结晶聚合物中，形成其中分散有结晶聚合物的橡胶胶结物，以及 (3) 从橡胶胶结物中的有机溶剂中回收橡胶弹性体中高度分散的结晶聚合物混合物。