is that polyethersulfone is (chemistry) polyethersulfone describes a family of thermoplastic polymers that 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 while polysulfone is (chemistry) any of a several classes …

What is the difference between polyethersulfone and polysulfone?

is that polyethersulfone is (chemistry) polyethersulfone describes a family of thermoplastic polymers that 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 while polysulfone is (chemistry) any of a several classes …

How is polysulfone made?

The simplest polysulfone poly(phenylene sulfone), known as early as 1960, is produced in a Friedel-Crafts reaction from benzenesulfonyl chloride: n C6H5SO2Cl → (C6H4SO2)n + n HCl. With a melting point over 500 °C, the product is difficult to process.

What is polysulfone resin?

Udel® PSU (polysulfone) is a rigid, high-strength, semi-tough, transparent plastic that offers higher heat resistance and better hydrolytic stability than polycarbonate. It retains its good mechanical properties when exposed to steam and other sterilization techniques.

Is polysulfone a plastic?

PSU (polysulfone) is a high temperature, amber colored, semi-transparent plastic material with good mechanical properties. Polysulfone is resistant to degradation from hot water and steam and it is often used in medical and food preparation applications where repeated sterilization is required.

Who invented polysulfone?

2 Polysulfone and Polyethersulfone. PS membranes were introduced by Union Carbide in 1965 and showed extremely high thermal and chemical stability.

Is polysulfone biodegradable?

This material used for the first generation of Polymem hollow fibers, is resistant to chemicals (chlorine at high pH, soda, acids and other common washing agents), non-biodegradable and has excellent mechanical and thermal resistance.

Can you machine polysulfone?

Polysufones may be processed by extrusion, injection molding, and blow molding. Polysulfone can be used as an alternative to polycarbonate or acrylic for applications requiring high temperature performance or exposure to hot water and steam.

What is polyethersulfone used for?

Polyethersulfone (PES), as shown in Figure ​1, is considered one of the well-known polymeric material to be used to make ultrafiltration (UF), microfiltration (MF), and gas separation membranes since it provides unique properties such as outstanding thermal, mechanical, hydrolytic strength in both hot and wet …

Is polysulfone a thermoplastic?

18 Polysulfone (PSU) PSU is produced from bisphenol A and 4,4-dichlorodiphenylsulfone by a nucleophilic process. PSU is an amorphous engineering thermoplastic material with exceptionally high temperature resistance and high rigidity; it is transparent and dimensionally stable.

What is polysulfone membrane?

Polysulfone (PSF) membrane filters are employed as thermoplastic material in fabricating membranes for use in water ultrafiltration systems and gas separation. However, PSF membrane filters have seldom been used in aerosol filtration.

What is polysulfone membranes?