Tribromessigsaeure-<2-ethoxy-ethylester> | 30669-02-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Tribromessigsaeure-<2-ethoxy-ethylester>
• 英文别名: 2-Ethoxyethyl 2,2,2-tribromoacetate
• CAS: 30669-02-4
• 化学式: C₆H₉Br₃O₃
• 分子量: 368.848
• InChiKey: ORVLBMJDKINQCU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• A process for producing copolymers of ethylene with alpha-olefins
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0059034A1

  公开（公告）日：1982-09-01

  Copolymers of ethylene and an a-olefin of formula CH2 = CHR (in which R represents a straight or branched chain C1-C5 alkyl group) or copolymers of ethylene, said a-olefin and a iinear or cyclic diene or higher polyene having non-conjugated double bonds are prepared by polymerization in an inert organic solvent and in the presence of (a) an organoaluminium compound of formula R'nAlX(3-n) (in which R' represents a C1-C20 hydrocarbon group, X represents a halogen atom or an alkoxy group and n is a number such that 1 ≦ n≦ 3), (b) a trivalent to pentavalent vanadium compound soluble in an inert organic solvent, and (c) as a catalyst activator. an ester of a halogenated organic acid. The polymerization is effected in two reactors connected in series whilst keeping the reactors at different temperature levels. The copolymers produced have excellent processability.

  乙烯和式 CH2 = CHR 的 a-烯烃（其中 R 代表直链或支链 C1-C5 烷基）的共聚物，或乙烯、所述 a-烯烃和具有非共轭双键的线性或环状二烯或高 级多烯的共聚物，是在惰性有机溶剂中，在下列物质存在的情况下，通过聚合反应制备的 (a) 式 R'nAlX(3-n) 的有机铝化合物（其中 R' 代表 C1-C20 烃基，X 代表卤素原子或 烷氧基，n 为 1 ≦ n≦ 3 的数字）、 (b) 可溶于惰性有机溶剂的三价至五价钒化合物，以及 (c) 作为催化剂活化剂的卤代有机酸的酯。 聚合反应在两个串联的反应器中进行，同时使反应器保持在不同的温度水平。生产出的共聚物具有极佳的加工性能。
• Improved viscosity modifier polymers
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0299608A1

  公开（公告）日：1989-01-18

  The present invention relates to novel copolymers of alpha-olefins comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains.

  本发明涉及由分子内异构和分子间同构共聚物链组成的新型α-烯烃共聚物。
• Vanadium tetrachloride stabilization
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0291359A2

  公开（公告）日：1988-11-17

  Solutions of VCl₄ in inert organic solvent are stabilized by incorporation of decomposition retardants being halogenated organic compounds having at least two halogen atoms attached to the same carbon atom and activated by adjacent electron donor groups or carbon-carbon double bonds. One of the especially preferred stabilizers is butyl perchlorocrotonate. The solutions are useful in polymerization processes.

  在惰性有机溶剂中的 VCl₄溶液可通过加入分解阻滞剂来稳定，分解阻滞剂是至少有两个卤素原子连接到同一碳原子上并通过相邻的电子供体基团或碳碳双键活化的卤代有机化合物。其中一种特别优选的稳定剂是过氯酸丁酯。这些溶液可用于聚合过程。
• Carboxylate polymer and viscosity index improver containing oleaginous compositions
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0385727A2

  公开（公告）日：1990-09-05

  A lubricating oil composition exhibiting improved flow properties, specifically low temperature flow properties, and viscometric properties, particularly low temperature viscometric properties comprising lubricating oil and (i) an amount effective to improve the low temperature flow properties of said lubricating oil composition of additive consisting essentially of at least one low molecular weight non-ethylene containing polymer or interpolymer containing pendent ester groups comprising repeating methylene units derived from mixture of aliphatic alcohols, said mixture containing at least about 25 weight percent C14 alcohol; and (ii) an amount effective to improve the viscosity index of said lubricating oil composition of additive comprising copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alphaolefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains an average ethylene content of at least about 57 weight percent, wherein said low crystallinity segment contains an average of not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M w/ M of less than 2 and a ratio of M 2/ M w of less than 1.8, and wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 7 weight percent ethylene.

  一种润滑油组合物，具有更好的流动性能（尤其是低温流动性能）和粘度性能（尤其是低温粘度性能），包括润滑油和 (i) 有效改善所述润滑油组合物低温流动性能的添加剂量，该添加剂主要由至少一种低分子量非乙烯聚合物或内聚物组成，该聚合物或内聚物含有由脂肪醇混合物衍生的重复亚甲基单元组成的下垂酯基，所述混合物至少含有约 25 重量百分比的 C14 醇；以及 (ii) 有效改善所述润滑油组合物粘度指数的添加剂用量，所述添加剂包含乙烯和至少另一种α-烯烃单体的共聚物，所述共聚物包含分子内异构共聚物链，其中至少含有一个亚甲基单元可结晶段和至少一个低结晶度乙烯-α-烯烃共聚物段、其中所述至少一个可结晶段包含所述共聚物链的至少约 10 重量％，并含有平均至少约 57 重量％的乙烯含量，其中所述低结晶度段含有平均不大于约 53 重量％的乙烯，并且所述共聚物具有分子量分布，其特征为 M w/ M 的比率小于 2 和 M 2/ M w 的比率小于 1 中的至少一个。8，且其中单个分子内异构链的至少两个部分（每个部分占所述链的至少 5 重量％）在组成上彼此相差至少 7 重量％的乙烯。
• Grafted viscosity index improver
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0400867A1

  公开（公告）日：1990-12-05

  Oil soluble grafted ethylene-alpha-olefin copolymer useful as a viscosity modifier for oleaginous compositions comprising: (i) backbone copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of Mw/Mn of less than 2 and a ratio of Mz/M2 of less than 1.8, and wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 7 weight percent ethylene; having grafted on said backbone copolymer (ii) residue of ethylenically unsaturated grafting material; said grafted ethylenealpha-olefin copolymer having substantially the molecular weight distribution, i.e., within about 10 percent, of said copolymer of ethylene. The preferred grafting material is an ethylenically monounsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or an anhydride group.

  可溶于油的接枝乙烯-α-烯烃共聚物，可用作含油组合物的粘度调节剂，其成分包括 (i) 乙烯和至少另一种α-烯烃单体的骨架共聚物，所述共聚物包括分子内异构共聚物链，其中至少含有一个亚甲基单元的可结晶段和至少一个低结晶度的乙烯-α-烯烃共聚物段、其中所述至少一个可结晶段占所述共聚物链的至少约 10 重量％，并含有至少约 57 重量％的乙烯，其中所述低结晶度段含有不大于约 53 重量％的乙烯，并且所述共聚物具有分子量分布，其特征为 Mw/Mn 比值小于 2 和 Mz/M2 比值小于 1 中的至少一种。8，且其中单个分子内异质链的至少两个部分（每个部分占所述链的至少 5 重量％）在组成上彼此相差至少 7 重量％的乙烯；在所述骨架共聚物上接枝有 (ii) 乙烯不饱和接枝材料的残留物；所述接枝的乙烯-α-烯烃共聚物的分子量分布与所述乙烯共聚物基本相同，即在约 10%以内。优选的接枝材料是具有 1 至 2 个羧酸基团或酸酐基团的乙烯单不饱和羧酸材料。