首页>
外国专利>
CATALYST SYSTEM CONTAINING AN ANIONIC INITIATOR AND A PHOSPHINE OXIDE MODIFIER AND PROCESS FOR PRODUCTION OF POLYMERS HAVING INCREASED 1,2 MICROSTRUCTURE
CATALYST SYSTEM CONTAINING AN ANIONIC INITIATOR AND A PHOSPHINE OXIDE MODIFIER AND PROCESS FOR PRODUCTION OF POLYMERS HAVING INCREASED 1,2 MICROSTRUCTURE
展开▼
机译:包含阴离子引发剂和氧化膦改性剂的催化剂体系以及用于生产提高了1,2微观结构的聚合物的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A process and catalyst system is disclosed herein for the preparation of (co)polymers having a 1,2-microstructure of between about 20 and about 65 percent. These (co)polymers are prepared in a hydrocarbon or non-polar solvent from a monomer system which contains at least one 1,3-diene monomer. The catalyst system which is employed in the production of the (co)polymer is a combination of an anionic initiator based on lithium and a phosphine oxide modifier which is substituted with three saturated heterocyclic rings, each hetero ring containing one nitrogen atom and either four, five or six carbon atoms.
展开▼