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Method for preparing polyethylene glycol and butyl titanate compound

A technology of polyethylene glycol and butyl titanate, which is applied in the field of compound preparation, can solve problems such as not being seen, and achieve the effects of easy mass production, low solubility, and convenient use

Inactive Publication Date: 2015-10-28
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polyethylene glycol has terminal hydroxyl groups and has high chemical reactivity. It is easy to react with butyl titanate to form a complex. The resulting complex combines the structures and functions of polyethylene glycol and titanate, and is expected to be used as a multifunctional Fillers or additives are applied to the modification of products such as coatings, plastics, rubber and fibers, but the same products or products have not been seen in the current literature or on the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] Dissolve 0.5 mole of polyethylene glycol 400 in absolute ethanol to make a solution, then stir and disperse 1 mole of tetrabutyl titanate into the polyethylene glycol solution, and leave the mixture at room temperature for 3 hours , and then completely remove the moisture and free organic solvents therein by vacuum drying to obtain a powdery product.

example 2

[0012] Dissolve 0.5 mole of polyethylene glycol 400 in dichloromethane to make a solution, then ultrasonically disperse 1 mole of tetrabutyl titanate into the polyethylene glycol solution, and leave the mixture at room temperature for 12 hours , and then completely remove the moisture and free organic solvents therein by vacuum drying to obtain a powdery product.

example 3

[0014] First, dissolve 1 mole of polyethylene glycol 400 in absolute ethanol to make a solution, then ultrasonically disperse 1 mole of tetrabutyl titanate into the polyethylene glycol solution, and leave the mixture at room temperature for 24 hours , and then completely remove the moisture and free organic solvents therein by vacuum drying to obtain a powdery product.

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PUM

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Abstract

The method discloses a method for preparing a polyethylene glycol and butyl titanate compound, and belongs to the field of auxiliary synthesis. The method includes the steps that a certain amount of polyethylene glycol is dissolved into anhydrous organic solvent to prepare a solution, the appropriate amount of butyl titanate is evenly dispersed into the polyethylene glycol solution in an ultrasonic or stirring mode, the mixed solution stands for 3-72 h so that organic solvent can volatilize naturally, and then water and residual organic solvent in the mixture are completely removed through the methods such as vacuum filtering and forced air drying to obtain the waxy or powdery polyethylene glycol and butyl titanate compound. The method for preparing the polyethylene glycol and butyl titanate compound is easy to operate and meets the requirement of industrial production, and the polyethylene glycol and butyl titanate compound is easy to produce in batches by means of the method.

Description

technical field [0001] The invention relates to a preparation method of a composite of polyethylene glycol and butyl titanate, belonging to the field of auxiliary agent synthesis. Background technique [0002] Polyethylene glycol (PEG) is a linear (relative molecular weight 5000-30000) or branched (relative molecular weight 40000-60000) chain structure formed by the polymerization of ethylene oxide. The molecular formula of linear polyethylene glycol is H-(O-CH2-CH2) n -OH. Polyethylene glycol is a neutral, non-toxic high molecular polymer with unique physical and chemical properties and good biocompatibility. It is also one of the synthetic polymers approved by the FDA. It not only has good water solubility, but also can be dissolved in Organic solvents such as dichloromethane, dimethylformamide, benzene and ethanol. Polyethylene glycol has excellent lubricity, moisture retention, dispersibility, antistatic properties, etc. It is widely used in cosmetics, pharmaceuticals...

Claims

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Application Information

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IPC IPC(8): C08L71/02C08K5/10
Inventor 陈利庞秀江
Owner QINGDAO UNIV OF SCI & TECH