Method for manufacturing polymer and flow-type reaction system for manufacturing polymer

Patent metadata

Field	Value
Publication number	US-12024573-B2
Application number	US-202117210514-A
Country	US
Kind code	B2
Filing date	Mar 24, 2021
Priority date	Sep 27, 2018
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

Provided is a method for manufacturing a polymer by a flow-type reaction, including introducing a liquid A containing an anionic polymerizable monomer and a non-polar solvent, a liquid B containing an anionic polymerization initiator and a non-polar solvent, a liquid C containing a polar solvent, and a polymerization terminator into different flow paths; allowing the liquids to flow in the respective flow paths; allowing the liquid A and the liquid B to join together at a joining portion; allowing a conjoined liquid MAB of the liquid A and the liquid B to join with the liquid C at downstream of the joining portion; subjecting the anionic polymerizable monomer to anionic polymerization while a conjoined liquid MABC of the conjoined liquid MAB and the liquid C is flowing to downstream in a reaction flow path; and allowing a polymerization reaction solution flowing in the reaction flow path to join with the polymerization terminator so that the polymerization reaction is terminated and a polymer is obtained, in which a polarity of a solvent of the liquid MABC is made higher than a polarity of a solvent of the liquid MAB. Also provided is a flow-type reaction system suited for performing the manufacturing method.

First claim

What is claimed is:

1. A method for manufacturing a polymer in which anionic polymerization reaction is performed by a flow-type reaction, comprising:
introducing a liquid A containing an anionic polymerizable monomer and a non-polar solvent, a liquid B containing an anionic polymerization initiator and a non-polar solvent, a liquid C containing a polar solvent, and a polymerization terminator into different flow paths;
allowing the liquids to flow in their respective flow paths;
allowing the liquid A and the liquid B to join together at a joining portion;
allowing a conjoined liquid M AB of the liquid A and the liquid B to join with the liquid C at downstream of the joining portion;
subjecting the anionic polymerizable monomer to anionic polymerization while a conjoined liquid M ABC of the conjoined liquid M AB and the liquid C is flowing to downstream in a reaction flow path; and
allowing a polymerization reaction solution flowing in the reaction flow path to join with the polymerization terminator so that the anionic polymerization reaction is terminated and a polymer is obtained,
wherein due to the joining of the conjoined liquid M AB with the liquid C, a polarity of a solvent of the conjoined liquid M ABC is higher than a polarity of a solvent of the conjoined liquid M AB .

2. The method for manufacturing a polymer according to claim 1 ,
wherein both the flow path in which the liquid A flows and the flow path in which the liquid B flows have an equivalent diameter of 1 to 10 mm.

3. The method for manufacturing a polymer according to claim 1 ,
wherein the conjoined liquid M AB and the liquid C join together in a state where a monomer conversion rate in the conjoined liquid M AB is equal to or lower than 5.0 mol %.

4. The method for manufacturing a polymer according to claim 1 ,
wherein due to the joining of the conjoined liquid M AB with the liquid C, a mass ratio of a polar solvent to the solvent in the conjoined liquid M ABC is 1.5 times or more of a mass ratio of a polar solvent to the solvent in the conjoined liquid M AB .

5. The method for manufacturing a polymer according to claim 1 ,
wherein an ether solvent is used as the polar solvent.

6. The method for manufacturing a polymer according to claim 1 ,
wherein a length of the reaction flow path in which the liquid M ABC flows is 3 to 50 m.

7. The method for manufacturing a polymer according to claim 1 ,
wherein a number of flow paths, which are connected to the joining portion of the liquid A and the liquid B and in which the liquid A flows, and a number of flow paths, which are connected to the joining portion of the liquid A and the liquid B and in which the liquid B flows, is 3 to 10 in total.

8. The method for manufacturing a polymer according to claim 1 ,
wherein at least one organic lithium compound or at least one organic magnesium compound is used as the anionic polymerization initiator.

9. The method for manufacturing a polymer according to claim 1 ,
wherein alkyl lithium is used as the anionic polymerization initiator.

10. The method for manufacturing a polymer according to claim 1 ,
wherein n-butyllithium is used as the anionic polymerization initiator.

11. The manufacturing method according to claim 1 ,
wherein the liquid B contains at least one aromatic hydrocarbon or at least one saturated hydrocarbon as a non-polar solvent.

Assignees

• Fujifilm Corp

Inventors

• Wada Kenji
• Matsumoto Hideki
• Harada Kei

Classifications

• C08F12/08

  Styrene · CPC title

• C08F12/06

  Hydrocarbons · CPC title

• C08F2/42

  using short-stopping agents · CPC title

• C08K5/56

  Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond · CPC title

• C08F2/38

  Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title