Dimethyl 9-sulfanyloctadecanedioate

• 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: Dimethyl 9-sulfanyloctadecanedioate
• 英文别名: dimethyl 9-sulfanyloctadecanedioate
• 化学式: C₂₀H₃₈O₄S
• 分子量: 374.6
• InChiKey: NEURERACCGRAFU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  25
• 可旋转键数：
  19
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  53.6
• 氢给体数：
  1
• 氢受体数：
  5

文献信息

• Use of Mercapto-Methyl Esters as Chain Transfer Agents
  申请人：ARKEMA FRANCE

  公开号：US20140235807A1

  公开（公告）日：2014-08-21

  Disclosed herein is a chain transfer agent in a free-radical emulsion polymerization process, of at least one mercapto-methyl ester, and also relates to the free-radical emulsion (co)polymerization process comprising at least one such mercapto-methyl ester and uses thereof. Also disclosed herein are mercapto-methyl diesters.

  本文披露了一种自由基乳液聚合过程中的链转移剂，至少包括一种巯基甲酯，并且涉及至少一种这样的巯基甲酯的自由基乳液（共）聚合过程及其用途。本文还披露了巯基甲酯二元酯。
• Method of preparing vinyl chloride-based polymer
  申请人：LG CHEM, LTD.

  公开号：US10766976B2

  公开（公告）日：2020-09-08

  The present invention relates to a method of preparing a vinyl chloride-based polymer, which includes inducing the nucleation of particles by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); and preparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization). In the preparation method, a vinyl chloride-based polymer having a uniform molecular weight distribution and a desired number average molecular weight may be provided by controlling a degree of polymerization of a vinyl chloride-based polymer prepared in such a way that dispersibility is ensured by adjusting the point of time to add the mercaptan-based chain transfer agent to the point of time to reach a specific conversion rate of the preliminary polymerization.

  本发明涉及一种氯乙烯基聚合物的制备方法，包括通过向包括氯乙烯基单体和初聚合引发剂的单体组合物中添加硫醇基链转移剂来诱导颗粒成核（初聚合）；以及通过混合氯乙烯基单体和颗粒核并添加主聚合引发剂来制备聚合物（主聚合）。在制备方法中，可通过控制氯乙烯基聚合物的聚合度来提供具有均匀分子量分布和所需平均分子量的氯乙烯基聚合物，聚合度的控制方式是通过调整添加硫醇基链转移剂的时间点到达到初步聚合的特定转化率的时间点来确保分散性。
• UTILISATION DE MERCAPTO-ESTERS METHYLIQUES EN TANT QU'AGENTS DE TRANSFERT DE CHAINE
  申请人：Arkema France

  公开号：EP2956487B1

  公开（公告）日：2019-04-24
• METHOD FOR PREPARING VINYL CHLORIDE BASED POLYMER
  申请人：LG Chem, Ltd.

  公开号：EP3404048B1

  公开（公告）日：2020-08-26
• METHOD OF PREPARING VINYL CHLORIDE-BASED POLYMER
  申请人：LG CHEM, LTD.

  公开号：US20190048110A1

  公开（公告）日：2019-02-14

  The present invention relates to a method of preparing a vinyl chloride-based polymer, which includes inducing the nucleation of particles by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); and preparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization). In the preparation method, a vinyl chloride-based polymer having a uniform molecular weight distribution and a desired number average molecular weight may be provided by controlling a degree of polymerization of a vinyl chloride-based polymer prepared in such a way that dispersibility is ensured by adjusting the point of time to add the mercaptan-based chain transfer agent to the point of time to reach a specific conversion rate of the preliminary polymerization.