| 摘要 |
<p>Polymer is prepd. by ring opening >=1 norbornene deriv. contg. (i) >=1 polar gp. consisting of a nitrile, ester, ether imide, acid anhydride or amide gp., Cl or Br, or (ii) a 20C hydrocarbyl gp. and polar gp. Catalyst system is prepd. from an organometallic cpd. (I) of a Gp. IA, IIA, IIB, IIIB, IVA or IVB and the reaction prod. of >=1 W oxide and Mo oxide and >=1 halogen-contg. cpd., e.g. PCl5, PF5, PBr5, POCL3, PCl3, AlCl3, AlBr3, All3, BF3, TiCl4, SnCl4, VOCl3, VCl4 or SiCl4. Polymers, graft-and block copolymers may be used as such or as compressed articles, e.g. pellets, films, foils pipes, rods, containers. Uses include bottles, bags, machine parts, lamp parts, agricultural devices. Other uses are as ion exchanger resins, coagulants, adhesives and coatings. The catalyst activity is high. In an example 0.152 mol WO3 and 0.182 mil PCl5 were reacted in o-dichlorobenzene for 60 min. at 120 degrees C. 1 ml (0.4 mmol W) of liquid residue of WO3/PCl5 prod., 250 ml 1,2-dichloroethane, 150 g 5-cyano-bicyclo- 2,2,1 - heptene-2 and 6 ml Et2AlCl in 1,2-C2Cl4Cl2 (1 mol/1) were added. Polymerisation took 60 min at 70 degrees C. Degree of conversion for polymer (w.r.t. monomer) was 52%.</p> |
