CN101234954A - Method for synthesizing octodecyl alcohol polyoxyethylene ether - Google Patents
Method for synthesizing octodecyl alcohol polyoxyethylene ether Download PDFInfo
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- CN101234954A CN101234954A CNA2007101648026A CN200710164802A CN101234954A CN 101234954 A CN101234954 A CN 101234954A CN A2007101648026 A CNA2007101648026 A CN A2007101648026A CN 200710164802 A CN200710164802 A CN 200710164802A CN 101234954 A CN101234954 A CN 101234954A
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- octodecanol
- polyoxyethylene ether
- molecular weight
- sodium methylate
- synthesizing
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Abstract
A synthesizing method of octodecanol polyoxyethylene ether belongs to the filed of synthesizing technology of organic compounds. Octodecanol polyoxyethylene ether is produced through polymerization of raw materials including octodecanol and ethylene oxide under the existence of a catalyst. The weight proportion of the octodecanol and ethylene oxide is 1 : 0.145-3.05; the catalyst is one or a mixture of more than one of solid sodium methylate, methanol solution of sodium methylate, KOH, NaOH, etc, and the addition thereof is 0.05-0.6 weight percent of prepared octodecanol polyoxyethylene ether. Through rational determination of technological parameters and conditions such as raw material proportion, catalyst amount, polymerization temperature and time, etc., the method of the invention can have the advantages of mild reaction condition, easy control and low equipment requirement. The prepared octodecanol polyoxyethylene ether has light color, stable property and wide adjustable molecular weight range. The molecular weight can be regulated to get a dye leveling agent with demanded performance to satisfy service requirements in various places.
Description
Technical field
The present invention relates to a kind of synthetic method of polyoxyethylene octadecanol, belong to technical field of organic compound synthesis.
Background technology
Polyoxyethylene octadecanol is a kind of good dyestuff levelling agent, has good emulsification, level dyeing performance, good temperature viscosity, biological degradability.Product is non-ionic type in alkalescence and neutral medium, be cationic in acidic medium.The levelling agent that is used for acidic complex dye can reduce dye bath sulfuric acid consumption, reduces the fabric strength damage; Also can make neutral dye, the levelling agent of vat dyes, the stripping agent of wool, polyamide fabric.But the then rare report of its synthetic method.
Summary of the invention
It is reasonable to the purpose of this invention is to provide a kind of technology, has the synthetic method of the polyoxyethylene octadecanol of better use properties.
The present invention is the synthetic method of polyoxyethylene octadecanol, is raw material with stearyl alcohol and oxyethane, it is characterized in that carrying out polyreaction in the presence of catalyzer makes; The weight ratio of described stearyl alcohol and oxyethane is 1: 0.145～3.05; Described catalyzer is a solid sodium methylate, methanol solution of sodium methylate, and KOH, the mixture of any one or more of NaOH etc., its add-on is 0.05～0.6% of the polyoxyethylene octadecanol weight percent that makes.
The temperature of described polyreaction can be 120～180 ℃.
The time of described polyreaction can be 5～20 hours.
The molecular weight of the described polyoxyethylene octadecanol that makes can be 353～5000.
The present invention compares by the analysis to existing polyether product synthetic method, through optimization design and repetition test research, rationally determined proportioning raw materials, catalyst levels, polymeric reaction temperature, processing parameter and conditions such as time, the reaction conditions gentleness, control easily, low for equipment requirements, make the polyoxyethylene octadecanol lighter color, stable performance, the scope of adjustable csa molecule amount is big: hydroxyl value 11.2～159.0mgKOH/g, molecular weight 353～5000g/mol (molecular weight=56110/ hydroxyl value) can satisfy the use needs of various occasions by adjusting the dyestuff levelling agent product that molecular weight obtains desired properties.
Embodiment
The preparation of reactor before implementing: with distilled water the 2.5L autoclave is washed several times earlier, till clean, dried reactor, standby after being cooled to 50～80 ℃.
Embodiment 1: add 600g stearyl alcohol and 1.1g powdery sodium methylate in reactor, be warmed up to 130 ℃, vacuum hydro-extraction added oxyethane 332g after 1 hour, 150 ℃ react completely after, cool to 80 ℃ of dischargings.The hydroxyl value 133.9 of this experiment product, molecular weight 419.
Embodiment 2: add 400g stearyl alcohol and 1.1g solid KOH in reactor, be warmed up to 130 ℃, vacuum hydro-extraction added oxyethane 1032g after 1 hour, 150 ℃ react completely after, cool to 80 ℃ of dischargings.The hydroxyl value 58.4 of this experiment product, molecular weight 960.
Embodiment 3: the mixture (in 1: 1 ratio batching) that adds 200g stearyl alcohol and 1.1g powdery sodium methylate and NaOH in reactor, be warmed up to 130 ℃, vacuum hydro-extraction added oxyethane 850g after 1 hour, 150 ℃ react completely after, cool to 80 ℃ of dischargings.These experiment product test data are: hydroxyl value 39.6, molecular weight 1417.
Embodiment 4: add the mixture (preparing burden by 1: 1 ratio) of 50g stearyl alcohol and 1.0g solid KOH and NaOH in reactor, be warmed up to 130 ℃, vacuum hydro-extraction is after 1 hour, adding oxyethane 880g, 150 ℃ react completely after, cool to 80 ℃ of dischargings.These experiment product test data are: hydroxyl value 12.2, molecular weight 5000.
Claims (4)
1, a kind of synthetic method of polyoxyethylene octadecanol is a raw material with stearyl alcohol and oxyethane, it is characterized in that carrying out polyreaction and make in the presence of catalyzer; The weight ratio of described stearyl alcohol and oxyethane is 1: 0.145～3.05; Described catalyzer is a solid sodium methylate, methanol solution of sodium methylate, and KOH, the mixture of any one or more of NaOH, its add-on is 0.05～0.6% of the polyoxyethylene octadecanol weight percent that makes.
2, by the synthetic method of the described polyoxyethylene octadecanol of claim 1, the temperature that it is characterized in that described polyreaction is 120～180 ℃.
3, by the synthetic method of the described polyoxyethylene octadecanol of claim 1, the time that it is characterized in that described polyreaction is 5～20 hours.
4, by the synthetic method of the described polyoxyethylene octadecanol of claim 1, the molecular weight that it is characterized in that the described polyoxyethylene octadecanol that makes is 353～5000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101648026A CN101234954A (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing octodecyl alcohol polyoxyethylene ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101648026A CN101234954A (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing octodecyl alcohol polyoxyethylene ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101234954A true CN101234954A (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101648026A Pending CN101234954A (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing octodecyl alcohol polyoxyethylene ether |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040692A1 (en) * | 2016-08-29 | 2018-03-08 | 江苏四新界面剂科技有限公司 | Preparation method for polydimethylsiloxane emulsifier |
-
2007
- 2007-12-21 CN CNA2007101648026A patent/CN101234954A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040692A1 (en) * | 2016-08-29 | 2018-03-08 | 江苏四新界面剂科技有限公司 | Preparation method for polydimethylsiloxane emulsifier |
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Open date: 20080806 |