3419 Smallman Street, Pittsburgh, PA 15201 412-682-5882 www.presschem.com

Styrene Butadiene Anionic Copolymerization

Pressure Chemical Co. (PCC) has experience in styrene butadiene anionic copolymerization process development and scale-up. These processes can be challenging due to regulatory requirements and the extreme reaction conditions, as well as the need to use toxic, flammable, carcinogenic, and reactive raw materials and reagents. Our scientists, engineers, and operators are well-versed in the safe operation of the purification systems and often high-pressure equipment necessary for these syntheses.

Styrene and butadiene can be polymerized in a solvent using organo lithium reagents and a modifier as initiators. This anionic polymerization is performed under scrupulous exclusion of moisture and air. The resulting polymer product can be quenched and precipitated or the solvent can be stripped off (customer process dependent). The polymer can then be analyzed by NMR and GPC. Other analyses may also be performed.

PCC can readily execute your batch styrene butadiene anionic copolymerization reactions covered under a confidentiality agreement. A general example of a polymerization performed at PCC follows.

Init H

yx

+

Initiator

modif ier

3419 Smallman Street · Pittsburgh, PA 15201 · 412-682-5882 PCC is experienced with styrene butadiene anionic copolymerization reactions requiring block co-polymer work to impact the properties and performance of the polymer. We can help you with your process requirements at lab and pilot scale.

Styrene butadiene anionic copolymerization processes can be followed by a hydrogenation step which can simply reduce the vinyl groups or produce fully saturated copolymers. PCC has the flexibility to help you with the approach that is best for your requirement.

Contact us today to discuss your project with one of our scientists. Please ask about our extensive hydrogenation experience and other capabilities as well.

A Pressure Chemical Co. Competency