Novel polyether containing styrene oxide opened loop repetitive units and method for preparing the same

A technique for oxidizing styrene and repeating units, which is applied in the field of new polyethers and its preparation, can solve the problems of time-consuming synthesis methods, lack of styrene oxide monomers, and inability to realize industrialization, etc., and achieves simple synthesis methods and low preparation costs , good controllability

Inactive Publication Date: 2009-07-29
吴安 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (2) polyether polyol for general polyurethane is also a relatively mature technology in the industry, and there is no report on introducing styrene oxide monomer into polyether production until the present invention
The synthesis of polystyrene oxide is just in its infancy, and the synthesis method is time-consuming and cannot be industrialized

Method used

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  • Novel polyether containing styrene oxide opened loop repetitive units and method for preparing the same
  • Novel polyether containing styrene oxide opened loop repetitive units and method for preparing the same

Examples

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Effect test

Embodiment 1

[0032] Example 1: 1 mol of polyoxypropylene with a molecular weight of 400 (the equivalent of hydroxyl value is 200) is stirred and added with a cobalt-zinc double metal cyanide catalyst with a total charge of 0.005%, and under nitrogen protection, the reaction temperature is 140°C, and 10 mol of styrene oxide is added dropwise , the dropwise addition is completed and the insulation aging reaction is carried out for 0.5 hours. At 140°C, the vacuum degree is greater than 93kPa, and the vacuum is pumped for 0.5 hours. Then the vacuum is stopped and then 0.3% of the total amount of analytically pure potassium hydroxide is added under nitrogen protection. At 140°C, The vacuum degree is greater than 93kPa, vacuumize for 0.5 hours, stop the vacuum, add 72.73mol ethylene oxide dropwise, the reaction temperature is 140°C, after the dropwise addition, keep the heat preservation and aging reaction for 0.5 hours, at 140°C, the vacuum degree is greater than 93kPa, vacuumize for 0.5 hours, s...

Embodiment 2

[0033] Embodiment 2: 1mol molecular weight is the glycerol polyoxypropylene ether (hydroxyl value equivalent is 167) of 500 and stirs and adds the xylene of total charge 35%, stirs and adds the cobalt-zinc double metal cyanide catalyst of total charge 0.005%, nitrogen protection At a reaction temperature of 140°C, 30mol styrene oxide was added dropwise, and after the dropwise addition, the heat preservation and aging reaction was carried out for 0.5 hours. At 150°C, the vacuum degree was greater than 93kPa, the steam was heated up, and the xylene was removed by vacuuming. When the temperature rose to 155°C, stop Vacuum, cool down to 80°C, and filter to obtain the finished product. The molecular weight of the product is 4100.

Embodiment 3

[0034] Embodiment 3: 1mol molecular weight is the glycerol polyoxypropylene ether (hydroxyl value equivalent is 167) of 500 and stirs and adds the xylene of total charge 35%, stirs and adds the cobalt-zinc double metal cyanide catalyst of total charge 0.005%, nitrogen protection At a reaction temperature of 140°C, 30mol of styrene oxide was added dropwise, and after the dropwise addition, the heat preservation and aging reaction was carried out for 0.5 hours. Then, under the protection of nitrogen, 0.3% of the total amount of analytically pure potassium hydroxide was added, and 20mol of ethylene oxide was added dropwise, and the reaction temperature was 140°C. ℃, heat preservation and aging reaction for 0.5 hours after the dropwise addition, lower the temperature to 80 ℃, add phosphoric acid aqueous solution equivalent to potassium hydroxide to neutralize for 0.5 hours, add magnesium silicate adsorbent, raise the temperature to 150 ℃, the vacuum degree is greater than 93kPa, and...

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Abstract

The invention provides novel polyether of styrene oxide ring-opening repeating unit and a preparation method thereof. The preparation method comprises the following steps: the oxygen in the air is isolated; chemical substances containing reactive hydrogen are used as an initiator for polymerization; according to the required amount of the needed objective product, 0 to 99 percent of solvent, is added, a plurality of types of 0.0001 to 99 percent of catalysts are added by times and polymeric monomers of styrene oxide, propylene oxide, ethylene oxidel, butylene oxide and vinylnaphthalene oxide are added by one time or batch; ring opening polyaddition is carried out to form coarse polyether under the temperature of 0 to 300 DEG C, the coarse polyether is processed by neutralization, adsorptive catalyst, degassing, separation and filtering so as to obtain objective product. The side group of the polymer contains large amount of benzene rings, is suitable for being used as surface active agent with special purpose, polyurethane materials and high molecular materials with special functions and has very wide application prospect.

Description

Technical field: [0001] The invention relates to a novel polyether containing styrene oxide ring-opening repeating units and a preparation method thereof. Background technique: [0002] (1) The synthesis of nonionic surfactants is a relatively mature technology in the industry. The direction of research on the synthesis of new surfactants is mainly focused on the selection of lipophilic groups and hydrophilic groups. Narrow, industrial production requires some special, special application requirements of the surfactant has not yet been developed, especially the surfactant required for non-aqueous systems. The synergy of multiple surfactants has become a last resort, and the synergy of surfactants is restricted by environmental factors, formulation stability, and monomer structure stability, and the application effect in many industries is not satisfactory. The lipophilic group of surfactants has always been positioned as a hydrocarbon group with a certain chain length. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/06
Inventor 吴安徐斌王锦堂汤振英
Owner 吴安
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