| 摘要 |
Polymers of 1,3-butadiene, or isoprene are made by polymerizing the diene monomer in the presence of a catalyst comprising an ether solution of lithium aluminium hydride, a titanium di-, tr-, or tetra-chloride, and iodine. The polymerization is generally effected in the presence of an inert diluent or solvent, e.g. a hydrocarbon. The ether is generally a dialkyl ether. The polymerization may be carried out as a continuous process. The configuration of the monomeric units in the polymers is mainly trans 1,4.
|
