Polymer-related chemicals

Examples of applications

Azo polymerization initiators are used as catalysts and foaming agents in organic processes, in addition to in polymer synthesis.

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Polymer Synthesis

Radical polymerization of styrene

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Radical polymerization of acrylic ester

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Copolymerization of styrene and acrylic ester

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Catalyst for Organic Synthesis

Addition reaction to olefins

Azo polymerization initiators can be used for addition reactions of HBr, H2S, etc. to olefins. Especially, when using styrenes, bromine or mercapto groups may be selectively introduced to the β position. 

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Mitsunobu reaction※1

Azo compounds※2 can be used as reagents for the Mitsunobu reaction. 

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※1 Mitsunobu reaction: SN2 (reaction) that activates hydroxyl group of alcohol with azo carboxylic acid ester and triphenylphosphine.
※2 Azo compounds: Bis (2-methoxyethl) azodicarboxylate, etc.

Foaming Agent

Azo polymerization initiators are used as foaming agents for vinyl chloride (PVC) or other plastics, taking advantage of the property of generating nitrogen gas.