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Research Progress of Application of Rare Earth Catalyst in Synthetic Rubber

Cui Xiaoming;National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials;SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch;  
Rare earth catalyst used as synthetic rubber catalyst has the advantages of high catalytic activity, high monomer conversion rate, high cis-structure content, low gel content and ash content, initiator residue harmless to rubber properties, and wide applications, which is a hot spot for the research and development of synthetic rubber in recent years.The research progress of application of rare earth catalyst in polybutadiene rubber, isoprene rubber, butadiene-styrene rubber, etc.is introduced, and the suggestions on improving the activity and stability of catalyst, reducing the dosage, accelerating the research of industrial preparation technology and developing new catalyst system are proposed.
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