III International Conference

PP-II-77propylene polymerization on zeolite (H 2 O)/AlMe 3 /Et[Ind] 2 ZrCl 2 catalyst were found tobe 32 and 48 kJ/mol respectively; in the case of ethylene polymerization with zeolite(H 2 O)/AlMe 3 /Cp 2 ZrCl 2 – 20 kJ/mol; with vanadium catalysts - 40±2 kJ/mol.• The specific activity of the zeolite supported Zr-cene catalyst in olefin polymerizationversus the content of the Zr-cene shows a maximum.• The reaction order of ethylene and propylene polymerization with respect to theconcentration of the monomer changes from 2 to 1 as the concentration of the monomerin the reaction zone increases.The developed immobilized catalysts were applied for the creation of filled polymercomposites with method of polymerization filling. The method has no alternative forobtaining the composites with ultrahighmolecular polymer matrix and ultrahighfilledpolymers. On the base of UHMWPE and natural zeolites, the composite material with highwear resistance, low coefficient of friction and high impact was synthesized. The material canbe used in elements working in the conditions of friction under high load [4].For solution of ecological problems, connected with the cleaning of water from nuclides,heavy metals, ammonia and petrochemical products, the organomineral sorbent –ultrahighfilled composite based on the dust fractions of natural zeolite (zeolite content of95-97 wt %) and UHMWPE, was developed. Sorbent can work as the ion–exchange filters instatic and dynamic conditions [5].The work was supported by the Russian Foundation for Basic Research (grant № 04-03-32884).References1. USSR Inventor′s Certificate 1066193 (1982), Byul.Izobr. 11 (1985), p.1992. Meshkova I.N., Ushakova T.M., Ladygina T.A., Kovaleva N.Yu., Novokshonova L.A.// PolymerBulletin 44 (2000), pp. 461-468.3. Meshkova I.N., Ushakova T.M., Ladygina T.A., Novokshonova L.A. // Polymer Science,Ser.A.Vol.44 (2002) pp.824-830 .Translated from Vysokomol. Soedineniya.4. Ushakova T.M.,Meshkova I.N., Kovaleva N.Yu., Gultzeva N.M., Grinev V.G.,Novokshonova L.A. // Polymer Science, Ser.A.Vol.40 (1998) pp.1092-1097. Translated fromVysokomol. Soedineniya.5. Rus. Pat. 2284857. Byul.Izodr. 28 (2006).305