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Solvent for polymerization and method for preparing polymer using the same

A polymer and solvent technology, applied in the field of polymerization solvent, can solve the problems of evaporation, increase of polymer production cost, depletion, etc., and achieve the effect of reducing production cost

Inactive Publication Date: 2007-08-01
SUNG RIM CLOVER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Meanwhile, although the solvent generally used in the art to perform polymerization can dissolve the polymer and be used to control the heat of polymerization during the polymerization, it is a consumable component that evaporates and is eventually used up
In addition, because this conventional solvent has a low boiling point, it cannot cause the resulting polymer to always exist in a liquid phase at room temperature
Therefore, when a liquid polymer is required (for example, when repairing concrete structures), there is a problem that an additional step of independently liquefying the polymer needs to be performed
Moreover, this traditional solvent is a consumable component, thereby increasing the cost of polymer production compared to polymerization methods using active solvents

Method used

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  • Solvent for polymerization and method for preparing polymer using the same
  • Solvent for polymerization and method for preparing polymer using the same
  • Solvent for polymerization and method for preparing polymer using the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] 800 kg TEOS and 8 kg AIBN were added to the 5 ton reactor and purged with nitrogen. Next, 868 kg of methyl methacrylate, 300 kg of butyl acrylate, 32 kg of hydroxyethyl methacrylate, and 20 kg of dodecyl mercaptan were added to the dropping funnel, followed by mixing, to provide a mixed monomer solution.

[0038] The reactor was heated to an internal temperature of 80° C. while agitating at a rotational speed of 80-120 rpm, and then the monomer mixed solution contained in the funnel was dropped into the reactor for 5 hours. At the same time, the heat generation in the reactor was carefully controlled so that the internal temperature of the reactor did not exceed 90°C.

[0039] 5 hours after the addition of the mixed monomers, 2 kg of AIBN was further added, and then the resulting mixture was allowed to react for another 2 hours.

[0040] Finally, a polymer with a final viscosity of 450 cps was obtained, in which 99.7% of the reactants were converted to polymer.

example 2

[0042] Example 1 was repeated except using the reactants described in Table 1 below to provide polymers.

[0043] Table 1

[0044] project

[0045]Finally, a polymer with a final viscosity of 750 cps was obtained in which 99.8% of the reactants were converted to polymer.

example 3

[0047] Example 2 was repeated except using the reactants described in Table 1 below to provide polymers.

[0048] Table 2

[0049] project

[0050] Finally, a polymer with a final viscosity of 850 cps was obtained in which 99.6% of the reactants were converted to polymer.

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Abstract

Disclosed are a solvent for polymerization and a method for preparing polymers using the same. The solvent is less harmful to the human body, causes a resultant polymer to be present always in a liquid phase, and is not evaporated during polymerization and thus is present in a polymer in such a manner that the whole polymer may serve as active component, resulting in reduction of the polymer production cost.

Description

technical field [0001] The present invention relates to a polymerization solvent and a method for preparing a polymer using the polymerization solvent. More specifically, the present invention relates to a polymerization solvent that is not too harmful to the human body so that the obtained polymer always exists in a liquid phase and a method of producing a polymer using the same It does not evaporate during the process and is therefore present in the polymer, making the entire polymer available as an active ingredient capable of further reactions, reducing polymer production costs. Background technique [0002] Polymerization methods are classified into bulk polymerization, solution polymerization, emulsion polymerization and suspension polymerization methods, which are well known in the art. Among these methods, the solution polymerization method using a solvent or dispersion medium can be easily controlled according to the heat of polymerization, contrary to the bulk pol...

Claims

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Application Information

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IPC IPC(8): C08F2/06
CPCC08F4/72C08F4/04C08F4/16C08F2/04C08F2/06C08G77/04
Inventor 崔光林
Owner SUNG RIM CLOVER
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