Radical Polymerization Method and Polymerization Reaction Apparatus
First Claim
1. A method of producing a polymer by causing a reaction solution containing a monomer and a radical polymerization initiator to continuously or intermittently flow through a flow path of a radical polymerization reaction apparatus, the method comprising:
- (1) a step of flowing the reaction solution into a heating-initiation part of the reaction apparatus and heating the flowed reaction solution to a prescribed temperature to cause the radical polymerization initiator in the reaction solution that has flowed into the heating-initiation part to undergo cleavage and thereby initiate radical polymerization of the monomer;
(2) a step of advancing the radical polymerization of the monomer in the reaction solution; and
(3) a step of cooling the reaction solution and obtaining the polymer,wherein the heating of the reaction solution, which has flowed into the heating-initiation part, to the prescribed temperature in step (1) is carried out by continuously mixing, under pressurization, the reaction solution with a heating medium in the heating-initiation part.
1 Assignment
0 Petitions
Accused Products
Abstract
A radical polymerization method that enables synthesis, at a high conversion rate, of polymers having a relatively uniform molecular weight and is applicable to various monomers, and an apparatus used for the method. A reaction solution containing monomer and initiator is continuously or intermittently circulated in the apparatus and is heated in a heating-initiation unit to a predetermined temperature simultaneously across a radial direction of a cross section of the flow path whereby the initiator located in a particular volume of the reaction solution is cleaved all at once. The apparatus includes a heating medium production unit 10, a heating medium-reaction solution mixing unit 20, a cooling unit 30, and a recovery unit 40 for a reaction mixture, all communicatively connected by the flow path and optionally a heating reaction unit 60, a cooling unit 70, and a recovery unit 80, all communicatively connected by the flow path.
-
Citations
25 Claims
-
1. A method of producing a polymer by causing a reaction solution containing a monomer and a radical polymerization initiator to continuously or intermittently flow through a flow path of a radical polymerization reaction apparatus, the method comprising:
-
(1) a step of flowing the reaction solution into a heating-initiation part of the reaction apparatus and heating the flowed reaction solution to a prescribed temperature to cause the radical polymerization initiator in the reaction solution that has flowed into the heating-initiation part to undergo cleavage and thereby initiate radical polymerization of the monomer; (2) a step of advancing the radical polymerization of the monomer in the reaction solution; and (3) a step of cooling the reaction solution and obtaining the polymer, wherein the heating of the reaction solution, which has flowed into the heating-initiation part, to the prescribed temperature in step (1) is carried out by continuously mixing, under pressurization, the reaction solution with a heating medium in the heating-initiation part. - View Dependent Claims (2, 4, 5, 8, 9, 10, 11, 19, 20, 21, 22)
-
-
3. (canceled)
-
6-7. -7. (canceled)
-
12. A radical polymerization reaction apparatus comprising:
- a heating medium production part 10;
a heating medium-reaction solution mixing part 20;
a cooling part 30; and
a reaction mixture recovery part 40, these being connected by flow paths. - View Dependent Claims (13, 14, 15, 16, 23, 24, 25)
- a heating medium production part 10;
-
17-18. -18. (canceled)
Specification