| 20259-91-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• CAS: 20259-91-0
• 化学式: C18H26NaO4
• 分子量: 329.4
• InChiKey: DSANCYHCGIUTFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  23
• 可旋转键数：
  12
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

文献信息

• Water-in-oil emulsions of water-soluble cationic polymers and a process for preparing such emulsions
  申请人：THE DOW CHEMICAL COMPANY

  公开号：EP0107226A2

  公开（公告）日：1984-05-02

  This invention is directed to water-in-oil emulsions of water-soluble polymers and to a process for making such emulsions. The emulsion comprises (1) a discontinuous aqueous phase containing a water-soluble polymer which aqueous phase is dispersed as colloidal size particles or droplets in (2) a continuous oil phase wherein the emulsion contains an emulsion stabilizing amount of a water-soluble salt and an emulsifying amount of a water-in-oil emulsifier, said salt added prior to polymerization to form the water-soluble cationic polymer. The water-in-oil emulsions are characterized in that the water-soluble polymer is a cationic polymer and the water-soluble salt is a salt of a monovalent anion. The process for preparing the water-in-oil emulsions comprises (1) forming a stable water-in-oil emulsion (monomeric precursor) containing at least one water-soluble monomer in the aqueous phase which is dispersed in a continuous oil phase, said emulsion containing a stabilizing amount of a water-soluble salt and an emulsifying amount of a water-in-oil emulsifier, and (2) subjecting the monomeric precursor to conditions sufficient to polymerize the monomer. The method is characterized in that at least one water-soluble monomer is a cationic monomer and the water-soluble salt is a salt of a monovalent anion. The water-in-oil emulsions of this invention are employed to supply flocculants to many substrates including, for exam- pie, sewage, cellulosic fibers and fines for retention and freeness: metal or treatment plating wastes, and coal tailings.

  本发明涉及水溶性聚合物的油包水乳剂和制造这种乳剂的工艺。乳液包括（1）不连续的水相，其中含有水溶性聚合物，水相以胶体大小的颗粒或液滴分散在（2）连续的油相中，其中乳液含有乳液稳定量的水溶性盐和乳化量的油包水型乳化剂，所述盐在聚合形成水溶性阳离子聚合物之前加入。油包水型乳剂的特征在于水溶性聚合物是阳离子聚合物，水溶性盐是单价阴离子盐。 制备油包水乳剂的工艺包括：(1) 在水相中形成稳定的油包水乳剂（单体前体），该乳剂含有至少一种水溶性单体，分散在连续油相中，所述乳剂含有稳定量的水溶性盐和乳化量的油包水乳化剂；(2) 将单体前体置于足以使单体聚合的条件下。该方法的特征在于至少一种水溶性单体是阳离子单体，水溶性盐是单价阴离子盐。 本发明的油包水乳剂可用于向许多基质提供絮凝剂，例如污水、纤维素纤维和细粒，以提高保留率和洁净度：金属或处理电镀废料和煤尾矿。
• Water-in-oil emulsion polymerization processes and the water-in-oil emulsions prepared therefrom
  申请人：THE DOW CHEMICAL COMPANY

  公开号：EP0130632A2

  公开（公告）日：1985-01-09

  This invention is directed to a water-in-oil emulsion polymerization process for preparing polymers of water-soluble monomers and to the water-in-oil emulsions prepared by the process. The process comprises subjecting portions of the emulsion to varying rates of shear during emulsion formation. Emulsions comprising water-soluble polymers prepared by this process contain a discontinuous aqueous phase having two or more droplet size distributions. These emulsions can have high polymer solids, reduced oil content, low bulk viscosity and high stability.

  本发明涉及一种用于制备水溶性单体聚合物的油包水乳液聚合工艺，以及由该工艺制备的油包水乳液。该工艺包括在乳液形成过程中使部分乳液受到不同速率的剪切。通过该工艺制备的包含水溶性聚合物的乳液含有不连续的水相，具有两种或两种以上的液滴大小分布。这些乳液具有高聚合物固体含量、低油含量、低体积粘度和高稳定性。
• A method for preparing a concentrated stable water-in-oil emulsion containing at least 40 weight percent of a water-soluble polymer
  申请人：THE DOW CHEMICAL COMPANY

  公开号：EP0153506A1

  公开（公告）日：1985-09-04

  This invention is directed to a method for preparing a concentrated stable water-in-oil emulsion containing at least 40 weight percent of a water-soluble polymer, which method comprises as steps of (1) forming a stable water-in-oil emulsion containing at least one water-soluble monomer in an aqueous phase which is dispersed in a continuous oil phase, said emulsion of monomer containing an emulsifying amount of a water-in-oil emulsifier; (2) subjecting said emulsion of monomer to conditions sufficient to polymerize the monomer thereby forming a stable water-in-oil preconcentrate emulsion of a water-soluble polymer; and (3) concentrating said preconcentrate emulsion by removing at least a portion of the water from the perconcentrate emulsion. The invention is characterized in that prior to or during step (3), an inverting surfactant is added in an amount sufficient to reduce the bulk viscosity of the preconcentrate emulsion, but less than that which destabilizes the preconcentrate emulsion or the concentrated emulsion. The concentrated emulsions prepared by the process of this invention are superior to conventional emulsions in that they have increased polymer solids, reduced oil content, lower bulk viscosity and greater stability than are characteristic in the conventional emulsions containing about 30 weight percent of solids. In addition to their utility as additives in drilling muds, fracturing fluids and fluid mobility control agents in enhanced oil recovery methods, the emulsions prepared by the process of the present invention are also useful as flocculating agents for sewages, industrial wastes, mining streams such as coal slurries and mining effluents, as thickeners for coating formulations and as additives for the manufacture of paper.

  本发明涉及一种制备浓缩的稳定的油包水乳液的方法，该乳液含有至少 40 重量百分比的水溶性聚合物，该方法包括以下步骤 (1) 在水相中形成稳定的油包水乳液，该乳液含有至少一种水溶性单体，该单体分散在连续油相中，所述单体乳液含有乳化量的油包水乳化剂；(2) 将所述单体乳液置于足以使单体聚合的条件下，从而形成稳定的水溶性聚合物的油包水预浓缩乳液；以及 (3) 通过从预浓缩乳液中去除至少一部分水，浓缩所述预浓缩乳液。本发明的特征在于，在步骤（3）之前或期间，加入一种倒置表面活性剂，其用量足以降低预浓缩乳液的体积粘度，但小于破坏预浓缩乳液或浓缩乳液稳定性的用量。 用本发明工艺制备的浓缩乳液优于传统乳液，因为与固体含量约为 30% 的传统乳液相比，浓缩乳液具有更高的聚合物固体含量、更低的油含量、更低的体积粘度和更高的稳定性。 除了作为添加剂用于钻井泥浆、压裂液和提高石油采收率方法中的流体流动性控制剂外，本发明工艺制备的乳液还可作为絮凝剂用于污水、工业废料、采矿流（如煤泥和采矿废水），作为增稠剂用于涂料配方，以及作为添加剂用于造纸。
• Cationic monomer delayed addition process
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0247774A2

  公开（公告）日：1987-12-02

  Water-in-oil emulsions of cationic water-soluble copolymers which are prepared by incorporating only a portion of the cationig monomer in the aqueous phase prior to forming the water-in-oil emulsion in which polymerization will occur, forming the emulsion, adding the balance of the cationic monomer, and then polymerizing the monomers. Copolymers prepared by this new process show improved performance over conventionally prepared cationic copolymers.

  阳离子水溶性共聚物的油包水乳液是通过以下方法制备的：在形成将发生聚合反应的油包水乳液之前，仅在水相中加入部分阳离子单体，形成乳液，加入剩余的阳离子单体，然后使单体聚合。 与传统制备的阳离子共聚物相比，这种新工艺制备的共聚物性能更佳。
• Bi-initiator system for water-in-oil emulsion polymers
  申请人：EXXON CHEMICAL PATENTS INC.

  公开号：EP0272004A2

  公开（公告）日：1988-06-22

  Water-in-oil emulsions of monomers which form water-soluble polymers are polymerized in the presence of a biphase initiator system containing both an oil-soluble initiator and a water-soluble initiator or activator or alternatively a water-soluble initiator and an oil-soluble activator which results in polymers having improved performance characteristics. In addition, the system permits the satisfactory polymerization of monomers which could not have been reproducibly polymerized.

  形成水溶性聚合物的单体的油包水乳液，在含有油溶性引发剂和水溶性引发剂或活化剂，或水溶性引发剂和油溶性活化剂的双相引发剂系统存在下进行聚合，从而产生性能更佳的聚合物。此外，该系统还能使无法重复聚合的单体顺利聚合。