| abstract |
Butene oligomer derivatives carrying tert-butyl groups as one of the terminal groups, having a repeating unit of the main hydrocarbon chain consisting of 80% by mol or more of CH2C(CH3)2-, and carrying the other terminal groups consisting of 60% by mol or more of 1,4-butanediol type functional groups. These derivatives are useful as macromonomers which can be subjected to polycondensation, polyaddition, etc. |