Iran Polymer and Petrochemical Institute

Laboratory-Grade Fine Chemicals for Sale

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1.   Monomers

1.1.     Sulfonated dihalides

2.   Polymers

2.1.      Polysulfones

2.2.       Poly (ether ketone)s

2.3.        Poly (ether sulfone ketone)s

2.4.         Ion-Exchange Polymers

2.4.1.    Sulfonated Polysulfones

2.4.2.    Sulfonated Poly (ether ketone)s

2.4.3.    Sulfonated Poly (ether sulfone ketone)s

2.4.4.    Chain-extended Sulfonated Polysulfones

2.4.5.    Chain-extended Sulfonated Poly (ether ketone)s

2.4.6.    Chain-extended Sulfonated Poly (ether sulfone ketone)s

3.   Membranes

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1.   Monomers

1.1.     Sulfonated dihalides

Sulfonated dihalides are used for the synthesis of ion exchange materials, including proton exchange polymers and cation exchange ones for fuel cells, batteries, chlor-alkali industry, separation processes, etc. These materials are also used to synthesize stable solid acid catalysts for the esterification process. Electrophilic aromatic substitution reaction on the phenyl ring is the common route for the synthesis of these materials. Sulfonated monomers are hydrophilic materials and have high moisture absorption.

Disodium bis(4-chloro-3-sulfophenyl)sulfone, Sulfonated dichlorodiphenyl sulfone (SDCDPS)

Disodium bis(4-fluoro-3-sulfophenyl)sulfone, sulfonated difluorodiphenyl sulfone (SDFDPS)

Disodium bis(4-chloro-3-sulfophenyl)ketone, sulfonated dichlorobenzophenone (SDCBP)

Disodium bis(4-fluoro-3-sulfophenyl)ketone, sulfonated difluorobenzophenone (SDFBP)

2.   Polymers

2.1.      Polysulfones

Polysulfones and poly (ether sulfone)s are amorphous thermoplastics with high thermal and chemical resistance, dimensional stability, mechanical strength and creep resistance, toughness and impact resistance, resistance to cracking, electrical insulation, high aging resistance, flame retardancy, lightweight and recyclable are used in various industrial and domestic applications. These applications include the manufacture of automotive parts, electrical and electronic components, home appliances and food industries such as microwave containers, non-stick containers and disposable aircraft containers, sensors, sealing (batteries, components of heat exchanger), coatings, medical devices, filtration membranes, thermostat parts, pipe fittings, etc. These high-performance engineering polymers can be synthesized with designed chemical structures. The nomenclature of these polymers is according to the functional groups. The industrial method of synthesis of these polymers is nucleophilic aromatic substitution (polyeterification). Additionally, Friedel-Crafts method is presented. Due to the structure-properties relationship, the optimal structure should be selected depending on the intended application.

Polysulfone, Poly (ether sulfone)

 

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

Polysulfone, Poly (ether sulfone)

 

2.3.        Poly (ether sulfone ketone)s

Depending on the number and existence of functional groups in the polymer structure, there are several types of polysulfones, poly (ether sulfone)s, and poly (ether ketone)s. Poly (ether sulfone ketone)s are also high-performance engineering thermoplastics that combine the properties of both polysulfones and poly (ether ketone)s. Regarding similar properties of polysulfones and poly (ether ketone)s, these polymers also have similar properties and applications to these two polymers. Due to the structure-properties relationship, the optimal structure should be selected depending on the intended application.

Poly (ether ketone)s

Poly (ether sulfone ketone)

Poly (ether sulfone ketone)

2.4.1 Sulfonated Polysulfones

Sulfonated polymers are a member of ion-exchange polymers, including proton exchange polymers and cation exchange polymers. These polymers are the materials for the preparation of proton exchange membranes for fuel cells, batteries, chlor-alkali industry, and separation processes. These polymers can be synthesized with different numbers of sulfonic acid groups or sulfonation degree (DS). Post-sulfonation and direct synthesis using sulfonated monomer are the two methods of preparation of these polymers. By the direct method, precise control of DS and adjustment of properties can be achieved. Increasing sulfonation degree (DS) makes it difficult to obtain a polymer with suitable molecular weight and applicable properties. On the other hand, by increasing DS, the properties of ion/proton conductivity are significantly improved. These polymers have a hydrophilic nature and absorption of environmental moisture.

Sulfonated Polysulfone, Sulfonated Poly (ether sulfone)

Sulfonated Polysulfone, Sulfonated Poly (ether sulfone)

Sulfonated Polysulfone, Sulfonated Poly (ether sulfone)

Sulfonated Polysulfone, Sulfonated Poly (ether sulfone)

Sulfonated Polysulfone, Sulfonated Poly (ether sulfone)

Sulfonated Poly (ether ketone)

Sulfonated Poly (ether ketone)

Sulfonated Poly (ether ketone)

Sulfonated Poly (ether ketone)

Sulfonated Poly (ether ketone)