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Polyglykol M 500 PU

Polyglykol Methylether

Edition Date :
August 10, 2020
Polyglykol M 500 PU is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that is completely water soluble. Polyglykol M 2000 FL is esterified with methacrylic acid to yield the corresponding polyglycol mono methacrylates which are used for the polymerization of polycarboxylate superplasticizers. Polyglykol M 500 PU is produced for polyurethane applications and offers low alkali and low water content.

Benefits

  • Low diol content to limit formation of crosslinking diesters
  • Completely water soluble
  • Low alkali content
  • Low water content
Product Function
  • Intermediate
Applications
  • Construction
  • Superplasticizer

Documents

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Polyglykol M 500 PU

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MSDS and TDS

Please refer to the Material Safety Data Sheet to have the complete and very latest safety information.

Technical Data

Molar mass [g/mol]

470-530

Diol - concentration [area % HPLC] 

< 0.5

Hydroxyl value (DIN 53240) [mg KOH/g]

106-119

Applications

Polyglykol M 500 PU is the raw material for 3rd generation superplasticizers. It is used for polyurethane applicatitons due to its low alkali and low water content.

It is also used as a chemical intermediate for paint additives.

Packaging and Storage

Delivery form
Liquid

Packaging
Stainless steel or aluminium containers with external heating coil.

Storage
Polyglycols in sealed original packaging have a shelf life of 2 years if stored in a cool, dry place.

Exclusion of moisture is very important, since liquid PEGs are hygroscopic and the solid types absorb any moisture they are exposed to due to their good solubility in water. Each time the containers are opened, they should be resealed to make them airtight.

The storage temperature should not exceed 90°C. The storage tank must have a circulation loop, top to bottom, with a dry nitrogen blanket to prevent product oxidation/degration.