Table of Contents
- 1 What is another name for polysulfone?
- 2 What is polysulfone dialyzer?
- 3 What is the difference between polyethersulfone and polysulfone?
- 4 What is polysulfone made from?
- 5 What is priming volume in dialysis?
- 6 What is high flux dialysis?
- 7 Why is polyethersulfone used for membranes?
- 8 Is polysulfone biodegradable?
- 9 What kind of applications can polysulfone be used for?
- 10 What are the uses of amber colored polysulfone?
- 11 What are the properties of polysulfones in water?
What is another name for polysulfone?
Polysulfones, also called polyaryl sulfones, are a class of engineering polymers with high thermal, oxidative and hydrolytic stabilitiy. They are amorphous, transparent thermoplastics that can be molded, extruded, or thermoformed into a wide variety of shapes.
What is polysulfone dialyzer?
Summary: Polysulfone (PS) membranes with polyvinylpyrrolidone (PVP) as a hydrophilic agent are widely used in dialysis, but blood components adhere to the membrane surface. We developed a new dialyzer, NV, by localizing a new hydrophilic polymer onto the inner surface of a hollow-fiber membrane composed of PS and PVP.
What is polysulfone membranes?
Polysulfone is an organic polymer widely used due to the chemical and thermal stability provided to the membrane . To obtain membranes used in microfiltration, ultrafiltration, nanofiltration and reverse osmosis, the non-solvent induced phase separation (NIPS) is most used .
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 …
What is polysulfone made from?
They are composed of para-linked aromatics, sulfonyl groups and ether groups and partly also alkyl groups. Polysulfones have outstanding resistance to heat and oxidation, hydrolysis resistance to aqueous and alkaline media and good electrical properties.
Is polysulfone a thermoplastic?
Polymeric Materials and Properties 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 priming volume in dialysis?
Priming is a pre-dialysis wash-through phenomenon of dialyzer with a volume of 60–120 mL according to membrane surface area and it improves the characteristics of the membrane.
What is high flux dialysis?
High-flux hemodialysis and hemodiafiltration are renal replacement therapies characterized by an important convective elimination of solutes, thanks to the use of synthetic membranes with a high ultrafiltration coefficient (high-flux membranes).
What is the monomer of polysulfone?
Polysulfone, any of a class of resinous organic chemical compounds belonging to the family of polymers in which the main structural chain most commonly consists of benzene rings linked together by sulfonyl (―SO2―), ether (―O―), and isopropylidene (―C(CH3)2―) groups.
Why is polyethersulfone used for membranes?
Polyethersulfone has been widely used as a promising material in medical applications and waste-treatment membranes since it provides excellent mechanical and thermal properties. Chemical modification to the material is a promising solution to this problem.
Is polysulfone biodegradable?
Methyl-5-(dimethylamino)-2-methyl-5-oxopentanoate (Rhodiasolv PolarClean) is a bio-derived, biodegradable, nonflammable and nonvolatile solvent. Polysulfone is a commonly used polymer to fabricate membranes due to its thermal stability, strong mechanical strength and good chemical resistance.
Does polysulfone have BPA?
Polysulfone does contain traces of Bisphenol A (BPA) by nature of its monomer building block.
What kind of applications can polysulfone be used for?
PBS Plastics is pleased to offer custom tubing and profiles made from Polysulfone (PSU), a versatile thermoplastic with characteristics that make it ideal for applications in medical devices, sterilization equipment, beverage processing, industrial separations, and semi-conductors.
What are the uses of amber colored polysulfone?
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.
Why is polysulfone a good polymer for chromatography?
Polysulfone is a suitable membrane polymer for chromatography because of its good film-forming properties and its thermal and biological resistance. Polysulfone is chemically fairly stable and, on the other hand, can be converted by some special reactions that do not alter the polymer properties.
What are the properties of polysulfones in water?
Polysulfones are chemical inert, highly biocompatibile, and can be sterilized. These properties make them highly suitable for medical and food/beverage contact applications. Many grades can withstand long term exposure to hot chlorinated water and have received approval for food contact and drinking water.