Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl)
Structural formula | |||||||
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Structure section of poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) | |||||||
General | |||||||
Surname | Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) | ||||||
other names |
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CAS number | 25608-63-3 | ||||||
Monomers / partial structures | Oxy-1,4-phenylsulfonyl-1,4-phenyl 4,4'-sulfonyldiphenol |
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Type of polymer | |||||||
Brief description |
light yellow to brownish odorless solid |
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properties | |||||||
Physical state |
firmly |
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density |
1.3-1.4 g · cm −3 at 20 ° C |
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Glass temperature |
225 ° C |
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modulus of elasticity |
2800 MPa |
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Water absorption |
0.7% (normal climate) |
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solubility |
insoluble in water |
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Electric conductivity |
> 1013 ohms m |
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Chemical resistance |
not resistant to trichlorethylene , acetone, as well as UV light and weather |
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Thermal conductivity |
0.17 W / K m |
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safety instructions | |||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) according to chemical nomenclature or colloquially polyethersulfone ( PESU or PES ) is a high-performance thermoplastic belonging to the group of polysulfones .
presentation
The synthesis of poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) can proceed both via a polysulfonylation and via a polyether synthesis.
properties
It is transparent, hydrolysis-proof and chemically resistant. Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) is superior to polysulfone (PSU) in terms of resistance to chemicals and impact strength . It is mainly used for parts subject to high thermal loads (medical devices, automobile and aircraft construction, electrical and electronic components).
Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl) is currently experiencing an upswing as a material for the manufacture of baby items (especially drinking bottles). The polycarbonate plastics commonly used up to now have been associated with health risks because of the bisphenol A they contain . In contrast to the clear-transparent polycarbonate bottles, the polyethersulfone alternatives are slightly honey-colored.
Individual evidence
- ↑ a b c d e safety data sheet ULTRASON® E 2010 NATUR POLYARYLETHERSULFONE ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. at BASF (PDF; 46 kB), accessed on January 2, 2012.
- ↑ a b c d e Properties of polyethersulfone (Kern GmbH)
- ↑ Test materials (PDF; 508 kB).