RADEL Polyphenylsulfone

Polyarylsulfones are a class of high-use temperature thermoplastics that characteristically exhibit excellent thermal-oxidative resistance, good solvent resistance, hydrolytic stability, and creep resistance (10). In 1965, Union Carbide announced a thermoplastic polysulfone based on dichlorodiphenylsulfone and bisphenol A (11). This polysulfone became commercially available in 1966 and was designated as Udel polysulfone. Since 1966, Imperial Chemical Industry (ICI), Minnesota Mining and Manufacturing (3-M), and Union Carbide have commercialized polyarylsulfones that contain only aromatic moieties in the polymer structure. These materials have been designated Vlctrex polyethersulfone (ICI), Astrel 360 (3-M), and Radel polyphenylsulfone (Union Carbide). 

The nucleophilic substitution reaction of an activated benzenoid halide with a phenoxide anion is currently the method used worldwide for the preparation of aromatic poly(aryl ether sulfones) " and poly(aryl ether ketones). " Amoco Performance Products UDEL Polysulfone and RADEL Polyphenylsulfone are made commercially via this route. The subject substitution reactions are also used by ICI to produce their Victrex Poly(ether sulfone) (PES) and Victrex Poly(ether ether ketone) (PEEK). 

In 2002, Solvay Advanced Polymers armoimced that a grade of its Radel polyphenylsulfone had been selected by Purolator for the housing of a transaxle fluid filter. The transaxle is part of an electronic powertrain being developed and tested for use in future fuel cell vehicles. Radel was selected for its excellent resistance to the corrosive fluid environment and high temperature resistance. 

Proprietary blend formulations based on polysulfone, polyethersulfone, and polyphenylsulfone are sold commercially by Amoco Corporation to meet various end use requirements. The blends based on polysulfone are sold under the MINDEL trademark. A glass fiber-reinforced blend based on PES is offered under the trade name RADEL AG-360. This offers most of the performance characteristics of 30% glass fiber-reinforced polyethersulfone but at a lower cost. Two blend product lines are offered based on PPSF. These are designated as the RADEL R-4000 and R-7000 series of products. The former is a lower cost alternative to RADEL R PPSF homopolymer offering most of the performance attributes unique to PPSF. The R-7000 series of resins have been formulated for use in aircraft interiors for civil air transport. They exhibit a very high degree of resistance to flammabihty and smoke release. 

As of November 1, 1995, the price range of UDEL polysulfone resias ia large quantities was 9.10— 12.03/kg depending on grade and color. RADEL A polyethersulfone grades sold for 10.46— 13.26/kg and the prices of RADEL R polyphenylsulfone resias were ia the range 15.75— 25.95/kg. MINDEL resias based oa polysulfoae had Hst prices betweea 6.72— 7.42/kg. 

Amoco Performance Products (Atlanta, Ga.), is the sole supplier of polysulfone, Udel, polyarylsulfone, Radel A, and polyphenylsulfone, Radel R. ICI Advanced Materials (Exton, Pa.), is the sole domestic supplier of the polyethersulfone, Victrex PES, but announced ia 1991 it was withdrawing from the business. 

Anonymous. Electrical properties for radel r polyphenylsulfone. Technical Bulletin MD-50135, Solvay Advanced Polymers, Alpharetta, Georgia, 2002. 

Ketron), pol5dmide (Vespel SP-1), polyphenylsulfone (Radel R) and sintered polybenzimidazole (PBI) (Celazole). These materials were unfilled or neat without any flame-retardant additives. 

PPSU Polyphenylsulfone BXL, Radel R Union Carbide/Amoco... 

In 1990, Amoco Performance Products, Inc., introduced an even higher-performance sulfone polymer derived from the condensation polymerization of 4,4 -dichlorodiphenylsulfone with 4,4 -dihydroxy-diphenyl (also known as biphenol). This polymer, which came to be known as polyphenylsulfone (PPSF) and which was introduced commercially under the trade name Radel R, has the following repeat unit structure ... 

In 1972 another member of this important family of products was introduced by Imperial Chemical Industries. In October 1976, Union Carbide announced RADEL R, a polyphenylsulfone, thereby adding a fourth member to the polyarylsulfone family. The last member of this group was introduced by Union Carbide in 1983, RADEL A Polyarylethersulfone. 

In 1976 Union Carbide introduced a second-generation polysulfone resin under the Radel R polyphenylsulfone, PPSU, trade name. This higher performing PPSU was prepared from 4,4 -biphe-nol and DCDPS [28]. PPSU has a Eg of 225°C. Its structure is shown in Fig. 1.14. The biphenyl moiety imparts enhanced chemical/solvent resistance, outstanding toughness, greater resistance to combustion, and enhanced thermo-oxidative stability. 

CELCON , TECAFORM AH, MT (Acetal Copolymer with antimicrobial fillers) RADEL R (Polyphenylsulfone)... 

Design guide version 3.1RADEL R polyphenyl-sulfone, RADEL apolyethersulfone, ACUDEL modified polyphenylsulfone. Solvay Advanced Polymers 2007. 

PPS is also finding applications in the medical market. For example, in 2002, Solvay Advanced Polymers Radel R polyphenylsulfone was used in the development of sterilisable containers because of its strength to withstand the pressures and vacuums of all autoclaves currently in use. 

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