Synthetic method of acetylene glycol polyoxyethylene ether

A kind of technology of acetylene glycol polyoxyethylene ether and synthesis method, which is applied in the field of synthesis of acetylene glycol polyoxyethylene ether, can solve the loss of unsaturation of acetylene glycol polyoxyethylene ether, and the unsaturation of acetylene glycol polyoxyethylene ether. Problems such as high saturation and carbon-carbon triple bond destruction
CN103965461BActive Publication Date: 2016-08-24SHANGHAI DUOLUN CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI DUOLUN CHEM
Publication Date
2016-08-24

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Abstract

The invention relates to a method for synthesizing an acetylene alcohol polyoxyethylene ether. The technical problem of unsaturation loss of the acetylene alcohol polyoxyethylene ether, caused by the existing synthesis method, is mainly solved. According to the method for synthesizing the acetylene alcohol polyoxyethylene ether, butynediol reacts with ethylene oxide in the presence of a catalyst to obtain the acetylene alcohol polyoxyethylene ether, wherein the catalyst comprises at least one of calcium hydroxide, a tertiary amine aliphatic compound and a protonic acid; the butynediol has a structure shown in a formula (I); R1 and R4 are independently selected from C3-C10 alkyl; R2 and R3 are independently methyl or ethyl. The technical problem is better solved, and the method can be applied to industrial production of the acetylene alcohol polyoxyethylene ether. The expression is as shown in the specification.
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Description

technical field

[0001] The present invention relates to the synthetic method of acetylenic diol polyoxyethylene ether, in particular to the preparation by polymerization reaction using 2,4,7,9-tetramethyl-5-decyne-4,7-diol and ethylene oxide as raw materials Method for 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylates. Background technique

[0002] 2,4,7,9-tetramethyl-5-decyne-4,7-diol polyoxyethylene ether is 2,4,7,9-tetramethyl-5-decyne-4,7- Diol (TMDD), English name: 5-Decyne-4,7-diol-2,4,7,9-tetramethyl (CAS NO: 126-86-3) as the initiator to initiate the polymerization of ethylene oxide Products, this series of products are harmless to humans and animals, and are harmless to the environment. They are environmentally friendly non-ionic surfactants, with unique dihydroxy groups and alkynyl groups in their structure, and unique surface activity. Compared with traditional surfactants, it has better performance.

[0003] CN103601881A discloses 2,4,7,9-tetramethyl-5-decyne-...

Claims

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