KR20130127872A - Additive for polymerization having high functionality - Google Patents
Additive for polymerization having high functionality Download PDFInfo
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- KR20130127872A KR20130127872A KR1020120051703A KR20120051703A KR20130127872A KR 20130127872 A KR20130127872 A KR 20130127872A KR 1020120051703 A KR1020120051703 A KR 1020120051703A KR 20120051703 A KR20120051703 A KR 20120051703A KR 20130127872 A KR20130127872 A KR 20130127872A
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- Prior art keywords
- vinyl chloride
- polymerization
- monomer
- aliphatic
- producing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/02—Monohydroxylic acyclic alcohols
- C07C31/125—Monohydroxylic acyclic alcohols containing five to twenty-two carbon atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F114/02—Monomers containing chlorine
- C08F114/04—Monomers containing two carbon atoms
- C08F114/06—Vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/006—Removal of residual monomers by chemical reaction, e.g. scavenging
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
An aliphatic higher alcohol functioning as a monomer absorption promoter may be added to a vinyl chloride resin polymerization process to minimize the amount of residual monomer to obtain a more stable latex and additionally to increase the consumption efficiency of monomers during polymerization, It is possible to reduce the generation amount.
Description
The present invention relates to a monomer absorption accelerator for producing a vinyl chloride-based resin, and more particularly, an aliphatic higher alcohol acting as a monomer absorption accelerator is added before polymerization to minimize the amount of residual monomer to obtain a more stable latex. And, additionally, to a monomer absorption accelerator for producing a vinyl chloride-based resin, which increases the consumption efficiency of the monomer during polymerization.
In addition to monomers and emulsifiers, various additives are used in the polymerization for producing the vinyl chloride resin depending on the intended use and desired physical properties. An ionic or non-ionic emulsifier may be added to improve the stability of the latex, or an acid or base may be used to control the pH. Among them, the materials used as non-ionic emulsifiers vary widely and their results are very different. Therefore, it is very important to select an appropriate material according to a desired purpose, and it is possible to easily express desired properties.
It is an object of the present invention to solve the problems of the prior art as described above, and it is an object of the present invention to minimize the amount of residual monomer that affects the physical properties of the final latex after completion of polymerization of the vinyl chloride resin to obtain more stable latex, The present invention is to provide an aliphatic alcohol which is used in a process for producing a vinyl chloride resin capable of increasing the consumption efficiency of a monomer and improving the productivity and reducing the scale generation amount.
The above object of the present invention can be achieved by the present invention described below.
According to the present invention, there is provided a monomer absorption promoter for the production of a vinyl chloride resin represented by the following general formula (1).
In Formula 1, n is an integer of 4 to 24.
When the monomer absorption promoter according to the present invention is used in the production method of the vinyl chloride resin, it is possible to obtain more stable latex by minimizing the amount of the residual monomer affecting the properties of the final latex after completion of the polymerization of the vinyl chloride resin. In addition, it is possible to increase the consumption efficiency of the monomers during the polymerization, to improve productivity and to reduce scale generation.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing a total cumulative amount of heat removal according to polymerization time according to Examples and Comparative Examples of the present invention, with and without a monomer absorption promoter; FIG.
According to the present invention, an aliphatic higher alcohol functioning as a monomer absorption accelerator is added prior to polymerization to minimize the amount of residual monomer.
Hereinafter, the present invention will be described in detail.
The structure of the aliphatic higher alcohols used in the polymerization is as follows. The polymerization of the vinyl chloride resin is carried out by adding the following aliphatic higher alcohol.
[Formula 1]
In the general formula (1), n is an integer of 4 to 24, and includes both an unsaturated state and a saturated state.
In the above, n is an integer of 4 to 24, more specifically an integer of 8 to 18, and has an effect of facilitating penetration of latex particles within this range.
The higher aliphatic alcohols are C 8 to C 18 aliphatic higher alcohols, specifically C 8 aliphatic higher alcohols, C 10 aliphatic higher alcohols, C 12 aliphatic higher alcohols, C 14 aliphatic higher alcohols, C 16 aliphatic higher alcohols, and C 18 Aliphatic higher alcohols, and may be used singly or in combination.
That is, C 8 is an example of a higher aliphatic alcohol. Aliphatic Higher Alcohol: C 10 Aliphatic higher alcohol = 0 to 100: 0 to 100 can be used in a mixture of a mixture of weight ratio, more specifically, a mixture of C 8 : C 10 = 0 to 55: 0 ~ 45 can be used. In addition, C 12 ~ C 18 aliphatic alcohol compound alone or a mixture may be used, wherein the content ratio of each aliphatic alcohol compound may be 0 to 100% by weight, in particular the ratio of C 12 or C 14 is 60% by weight or more to be.
The monomer absorption promoting agent for preparing a vinyl chloride resin may be used in an amount of 0.1 to 10 phm (relative to vinyl chloride monomer) in the production of a vinyl chloride-based polymer, so that the residual monomer that affects the physical properties of the final latex after completion of polymerization of the vinyl chloride- The amount can be minimized and a more stable latex can be obtained. More specifically 0.5 to 3 phm.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Changes and modifications may fall within the scope of the appended claims.
[Example]
The amount of polymerization was varied in each polymerization, and no aliphatic alcohol was added in the comparative example. After the completion of the polymerization, the amount of the monomer remaining in the monomer recovery process was confirmed.
Example One
A high pressure reactor of 200 L was charged with 110 phm of deionized water, 1.7 phm of lauryl peroxide, 0.003 phm of paraquinone, and 0.5 phm of aliphatic higher alcohol (CO 810) as a monomer absorption promoter and vacuum was applied to the reactor at -730 mmHg After the addition, 100 phm of vinyl chloride monomer and 1.6 phm of sodium dodecyl benzene sulfonate were added and stirred at a pressure of 3 kg / cm 2 for 20 minutes. And then circulated 65 times using a rotor-stator type homogenizer. When homogenization was complete, the reactor temperature was adjusted to 42 ° C and polymerization was carried out. The thus obtained seed was subjected to seed emulsion polymerization at 61 ° C.
Example 2
A vinyl chloride polymer was prepared in the same manner as in Example 1 except that the amount of the aliphatic higher alcohol was 1 phr and the number of cycles was 50.
Example 3
A vinyl chloride polymer was prepared in the same manner as in Example 1 except that the amount of the aliphatic higher alcohol was 2 phr and the number of circulation was 40 in Example 1.
Comparative Example One
A vinyl chloride polymer was prepared in the same manner as in Example 1, except that the aliphatic higher alcohol was not added and the number of circulation was 55.
[Test Example]
The amounts of the residual monomers of the vinyl chloride polymer prepared in the above Examples and Comparative Examples were confirmed through a flow meter installed in the recovery line.
* Residual Monomer: After the polymerization, the amount was confirmed through a flow meter installed in the residual monomer recovery line.
Cumulative heat removal: The amount of heat removed every minute during the polymerization was displayed over time until the completion of the reaction.
As shown in Table 1, when the vinyl chloride resin was polymerized using aliphatic higher alcohols according to Examples 1 to 3, the amount of residual monomer that could affect the physical properties of the final latex after polymerization was considerably reduced And it was confirmed that the consumption efficiency of the monomer during the polymerization can be increased. In addition, a comparison of the graphs of the cumulative exothermic calorific values with and without the monomer absorption promoter shows that the consumption efficiency of the monomer is improved, as well as the relative amount of the residual monomer can be compared.
Claims (5)
[Formula 1]
In Formula 1, n is an integer of 4 to 24.
N is an integer of 8 to 18 monomer absorption accelerator for producing a vinyl chloride-based resin.
The monomer absorption accelerator for producing a vinyl chloride-based resin is a C 8 to C 18 aliphatic higher alcohol, monomer absorption accelerator for producing a vinyl chloride-based resin.
The higher aliphatic alcohol is selected from the group consisting of C 8 aliphatic high alcohol, C 10 aliphatic high alcohol, C 12 aliphatic high alcohol, C 14 aliphatic high alcohol, C 16 aliphatic high alcohol and C 18 aliphatic high alcohol A monomer absorption promoter for producing a vinyl chloride resin.
The monomer absorption promoter for producing a vinyl chloride-based resin is a monomer absorption promoter for producing a vinyl chloride-based resin, characterized in that it is used at 0.1 to 10phm when producing the vinyl chloride-based polymer.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120051703A KR20130127872A (en) | 2012-05-15 | 2012-05-15 | Additive for polymerization having high functionality |
| CN201280039654.4A CN103732668B (en) | 2011-09-02 | 2012-08-06 | High functionality polymerization additive and use this additive to prepare the method for vinyl chloride seed |
| DE112012003654.9T DE112012003654B4 (en) | 2011-09-02 | 2012-08-06 | Process for producing a vinyl chloride seed, vinyl chloride seed and paste vinyl chloride resin |
| JP2014525923A JP5904345B2 (en) | 2011-09-02 | 2012-08-06 | High-functional polymerization additive and method for producing vinyl chloride seed using the same |
| PCT/KR2012/006220 WO2013032142A2 (en) | 2011-09-02 | 2012-08-06 | Highly functional polymerizing additive and method for preparing a vinyl chloride-based seed using same |
| US14/178,044 US9163134B2 (en) | 2011-09-02 | 2014-02-11 | Highly functional additive for polymerization and method for preparing vinyl chloride seeds using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120051703A KR20130127872A (en) | 2012-05-15 | 2012-05-15 | Additive for polymerization having high functionality |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140052531A Division KR101450505B1 (en) | 2014-04-30 | 2014-04-30 | Additive for polymerization having high functionality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20130127872A true KR20130127872A (en) | 2013-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020120051703A KR20130127872A (en) | 2011-09-02 | 2012-05-15 | Additive for polymerization having high functionality |
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| KR (1) | KR20130127872A (en) |
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- 2012-05-15 KR KR1020120051703A patent/KR20130127872A/en active Application Filing
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