Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl)

Structural formula
Structure section of poly (oxy-1,4-phenylsulfonyl-1,4-phenyl)
General
Surname	Poly (oxy-1,4-phenylsulfonyl-1,4-phenyl)
other names	Polyethersulfone PES PESU
CAS number	25608-63-3
Monomers / partial structures	Oxy-1,4-phenylsulfonyl-1,4-phenyl 4,4'-sulfonyldiphenol
Type of polymer	Polysulfones
Brief description	light yellow to brownish odorless solid
properties
Physical state	firmly
density	1.3-1.4 g · cm −3 at 20 ° C
Glass temperature	225 ° C
modulus of elasticity	2800 MPa
Water absorption	0.7% (normal climate)
solubility	insoluble in water
Electric conductivity	> 1013 ohms m
Chemical resistance	not resistant to trichlorethylene , acetone, as well as UV light and weather
Thermal conductivity	0.17 W / K m
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
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

1. ↑ ^{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.  
2. ↑ ^{a b c d e} Properties of polyethersulfone (Kern GmbH)
3. ↑ Test materials (PDF; 508 kB).