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The production of Polyethylene glycol

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The production of Polyethylene glycol

Post  gill on Sun Jan 16, 2011 10:45 pm


Polyethylene glycol is produced by the interaction of ethylene oxide with water, ethylene glycol, or ethylene glycol oligomers.The reaction is catalyzed by acidic or basic catalysts. Ethylene glycol and its oligomers are preferable as a starting material instead of water, because they allow the creation of polymers with a low polydispersity. Polymer chain length depends on the ratio of reactants.
Polyethylene oxide or high-molecular polyethylene glycol is synthesized by suspension polymerization. It is necessary to hold the growing polymer chain in solution in the course of the polycondensation process. The reaction is catalyzed by magnesium-, aluminium-, or calcium-organoelement compounds. To prevent coagulation of polymer chains from solution, chelating additives such as dimethylglyoxime are used.


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3Q

Post  iweddingdressesshop on Thu May 19, 2011 1:47 am

thanks a lot
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Re: The production of Polyethylene glycol

Post  kathreeds on Mon Jun 20, 2011 5:36 am

I have heard alot of side effects when Polyethylene glycol is used as a medication. For example:

1. nausea

2. bloating

3. cramping

4. gas

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