A process for the preparation of linear polymers which comprises polymerizing at least a conjugated diene and/or a monoalkylene aromatic compound in the presence of an organoalkali metal initiator compound and at least a hydrocarbon diluent, and subsequently contacting the living polymer chains with a compound of general formula;
RP(X)n(OR¹)₂
wherein R is a hydrocarbyl group of which the carbon atom connected to the phosphorus atom is a secondary or tertiary carbon atom; R¹ is an optionally substituted hydrocarbyl group; X represents an 0 or S atom; and n is 0 or 1.
一种制备线性聚合物的工艺,包括在有机碱
金属
引发剂化合物和至少一种烃类稀释剂存在下,聚合至少一种共轭二烯和/或单烷基芳香族化合物,然后将活体聚合物链与通式化合物接触;
RP(X)n(OR¹)₂
其中 R 是烃基,其中与
磷原子相连的碳原子是仲碳原子或叔碳原子;R¹ 是任选取代的烃基;X 代表 0 原子或 S 原子;n 是 0 或 1。