Polysulfones are a family of thermoplastic polymers. These polymers are known for their toughness and stability at high temperatures. They contain the subunit aryl-SO2-aryl, the defining feature of which is the sulfone group. Polysulfones were introduced in 1965 by Union Carbide. Due to the high cost of raw materials and processing, polysulfones are used in specialty applications and often are a superior replacement for polycarbonates.
Chemical and physical properties
These polymers are rigid, high-strength, and transparent, retaining these properties between −100°C and 150°C. It has very high dimensional stability; the size change when exposed to boiling water or 150°C air or steam generally falls below 0.1%. Its glass transition temperature is 185°C.
Polysulfone is highly resistant to mineral acids, alkali, and electrolytes, in pH ranging from 2 to 13. It is resistant to oxidizing agents, therefore it can be cleaned by bleaches. It is also resistant to surfactants and hydrocarbon oils. It is not resistant to low-polar organic solvents (e.g. ketones and chlorinated hydrocarbons) and aromatic hydrocarbons. Mechanically, polysulfone has high compaction resistance, recommending its use under high pressures. It is also stable in aqueous acids and bases and many non-polar solvents; however, it is soluble in dichloromethane and methylpyrrolidone.
Polyethersulfone (PES) is a similar polymer with low protein retention.
* Citing source: Wikipedia
Chemical resistance chart
How to use this chart
» Meaning of symbol:
OK: Recommended.
△: Must confirm if usable by testing in advanced.
X: Not recommended.
» This chart only provides the result of a single chemical to material, if a client uses more than one kind of chemical at the same time, please choose material by experience.
» This chart is for reference only which is not applicable to all working environments. Please refer to design equipment according to practical experience.
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Category
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Chemical
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PSU
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Organic acids
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Acetic acid
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△ (20%)
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Acetic acid, glacial
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N/A |
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Acetic anhydride
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△
|
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Citric acid
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OK (40%)
|
|
Organic compound
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Acetaldehyde
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OK (<159˚C)
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Acetone
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OK (5%)
X (100%)
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|
Methyl alcohol
|
X
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Aniline
|
OK
|
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Benzaldehyde
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△
|
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Benzene
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N/A |
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Benzyl alcohol
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△
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Benzyl chloride
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△
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Corn oil
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OK
|
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Ethanol
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OK
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Ethylene glycol
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OK
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Fatty acid
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OK
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Formaldehyde
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N/A
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Formic acid
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OK
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Hexane
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OK
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Lactic acid
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△
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Methanol
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△
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Paraffin oil
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N/A
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Petroleum
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N/A
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Phenol
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X
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Propane, liq
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OK
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Propanol
|
△
|
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Stearic acid
|
OK
|
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Tannic acid
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N/A
|
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Tartaric acid
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N/A
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Toluene
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N/A
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Urea
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N/A
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Inorganic compound
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Ammonia
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N/A
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Ammonium chloride
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OK
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Ammonium hydroxide
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OK
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Ammonium nitrate
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OK
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Ammonium sulfate
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OK
|
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Aqua regia
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OK
|
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Barium chloride
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OK
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Barium hydroxide
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OK
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Brine
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OK
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Calcium Chloride
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OK
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Calcium hydroxide
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OK
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Carbonic acid
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OK
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Chloric acid
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△
|
|
Chlorine
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△
|
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Detergent
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OK
|
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Hydrobromic acid
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OK (37% @ <150˚C)
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Hydrochloric acid
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OK (30%)
|
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Hydrofluoric acid
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△ (50%)
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|
Hydrogen peroxide
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△ (50%)
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|
Nitric acid
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OK (5%)
OK (40%)
△ (71%)
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Phosphoric acid
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OK (40%)
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Potassium hydroxide
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OK (35%)
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|
Potassium nitrate
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OK
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Potassium sulfate
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OK
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Sodium carbonate
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N/A |
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Sodium hydroxide
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OK (50%)
|
|
Sodium nitrate
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N/A |
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Sulfuric acid
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△ (40%)
△ (90%)
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Sulfur dioxide
|
N/A |
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