Method for synthesizing trimeric styrene-phenol ethoxylates
A technology of polystyrene phenol and polyoxyethylene ether, applied in the field of synthesis of organic compounds, to achieve the effect of improving quality, increasing molecular weight and improving performance
Inactive Publication Date: 2008-02-20
王伟松
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Problems solved by technology
But the synthetic method of existing tripolystyrene phenol polyoxyethylene ether rarely has bibliographical information
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0011] Add 600g of tripolystyrene phenol and 2.8g of sodium methoxide (powder) into the reaction kettle, raise the temperature to 130°C, vacuum dehydrate for 1 hour, add 332g of ethylene oxide, after the reaction is complete at 150°C, cool down to 80°C Add 2.9g of glacial acetic acid to neutralize the discharge.
Embodiment 2
[0013] Add 100g of tripolystyrene phenol and 1.0g of sodium methoxide (powder) into the reaction kettle, raise the temperature to 130°C, vacuum dehydrate for 1 hour, add 332g of ethylene oxide, and cool down to 80°C after the reaction is complete at 150°C Add 1.0 g of glacial acetic acid to neutralize the discharge.
Embodiment 3
[0015] Add 200g of tripolystyrene phenol and 3.0g of solid KOH into the reaction kettle, raise the temperature to 130°C, and after vacuum dehydration for 1 hour, add 1332g of ethylene oxide. After the reaction is complete at 150°C, cool down to 80°C and add 3.0g of Glacial acetic acid neutralizes the discharge.
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Abstract
The invention relates to a synthetic method of trimeric benzene polystyrene phenol polyethenoxy ether and belongs to the technical field of organic compound synthesis. Trimeric benzene polystyrene phenol and epoxy ethane are used as raw materials for polyreaction to produce the trimeric benzene polystyrene phenol polyethenoxy ether on the effect of catalyst; the mass ratio of the trimeric benzene polystyrene phenol and the epoxy ethane is 1.4 to 0.1:1; the catalyst is any one or a mixture containing more than one of solid sodium methoxide, sodium methoxide methanol solution, KOH, NaOH, etc. The dosage of catalyst is 0.1 percent to 0.4 percent of mass percentage composition of the synthesized trimeric benzene polystyrene phenol polyethenoxy ether. The invention effectively increases molecular weight of the trimeric benzene polystyrene phenol polyethenoxy ether and improves the functions of the trimeric benzene polystyrene phenol polyethenoxy ether by reasonable adjustment of ratio and mixture ratio of the trimeric benzene polystyrene phenol and epoxy ethane in polyreaction as well as the optimized selection of catalyst and reaction temperature.
Description
technical field [0001] The invention relates to a synthesis method of tripolystyrene phenol polyoxyethylene ether, which belongs to the technical field of organic compound synthesis. Background technique [0002] my country is a large agricultural country, which needs tens of thousands of tons of pesticides every year, and the demand for pesticide solvents, additives, and emulsifiers is also very large. The production of pesticide emulsifiers with excellent performance is very necessary to improve the quality of pesticides in our country. Tripolystyrene phenol polyoxyethylene ether has excellent emulsifying properties, warm viscosity and bactericidal properties, and has light color, low volatility and stable performance. It is a good emulsifier for pesticides. However, there are few reports in the literature on the existing synthetic methods of tripolystyrene phenol polyoxyethylene ether. Contents of the invention [0003] The purpose of the present invention is to provid...
Claims
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IPC IPC(8): C07C43/215C07C41/03
Inventor 王伟松王新荣孟照平马定连罗青
Owner 王伟松