Supported polyolefin catalysts

Kuhlke, 1997, Polyolefins review 1997, Hydrocarbon Processing, 1 Forte, 1996, Highly active magnesium chloride supported Ziegler-Natta catalysts with controlled morphology, Eur Polym J, 2, 223, 10.1016/0014-3057(95)00124-7 Garoff, 1996, Mn doping of the Ziegler-Natta catalyst support material, J Mol Catal A, 104, 205, 10.1016/1381-1169(95)00193-X Dupuy, 1997, Modification of Ziegler-Natta catalysts by cyclopentadienyl ligands: activation of titanium-based catalysts, J Appl Polym Sci, 65, 2281, 10.1002/(SICI)1097-4628(19970919)65:12<2281::AID-APP3>3.0.CO;2-5 Magni, 1995, Preparation of a model Ziegler-Natta catalyst: surface science studies of magnesium chloride thin film deposited on gold and its interaction with titanium chloride, Appl Surf Sci, 89, 187, 10.1016/0169-4332(95)00033-X Magni, 1996, Preparation of a model Ziegler-Natta catalyst: electron irrdation induced titanium chloride deposition on magnesium chloride thin films grown on gold, Surf Sci, 345, 1, 10.1016/0039-6028(95)07393-0 Magni, 1996, Electron irradiation induced chemical vapour deposition of titanium chloride on gold and on magnesium chloride thin films. Surface characterisation by AES, XPS and TPD, J Phys Chem, 100, 14786, 10.1021/jp960941r Magni, 1995, Ethylene and propylene polymerisation catalysed by a model Ziegler-Natta catalyst prepared by gas phase deposition of magnesium chloride and titanium chloride thin films, Catal Lett, 35, 205, 10.1007/BF00807177 Magni, 1997, Surface science study of model Ziegler-Natta catalysts, Surf Sci, 377–379, 824, 10.1016/S0039-6028(96)01512-9 Hasebe, 1997, Titanium distribution on the surface of Ziegler-Natta catalysts observed by scanning Auger electron microscopy, J Mol Catal A, 115, 259, 10.1016/S1381-1169(96)00339-1 Hasebe, 1997, X-ray photoelectron spectroscopy analysis of oxidation states of titanium chloride on the surface of Ziegler-Natta catalysts, J Mol Catal A, 124, L1, 10.1016/S1381-1169(97)00079-4 Potapov, 1997, EXAFS study of supported TiCl4/MgCl2 catalyst, Macromol Chem Phys, 198, 3477, 10.1002/macp.1997.021981112 Ystenes, 1995, New experimental and theoretical results and their relevance to the structure of the active centre in MgCl2 supported Ziegler-Natta catalysts, 449 Tarazona, 1997, Structure and stability of aluminum alkyl cocatalysts in Ziegler-Natta catalysts, Phys Chem B, 101, 4370, 10.1021/jp963999e Potapov, 1997, Surface acidic sites on supported titanium magnesium catalyst for propylene polymerisation: ESR study via adsorption of stable nitroxyl radicals, Macromol Chem Phys, 198, 2867, 10.1002/macp.1997.021980916 Novokshonova, 1997, Study of the energy distribution of active sties in heterogeneous Ziegler-Natta catalysts, Polymer Bull, 39, 59, 10.1007/s002890050120 Kissin, 1995, Kinetics of olefin copolymerisation with heterogeneous Ziegler-Natta catalysts, Macromol Symp, 89, 113, 10.1002/masy.19950890113 Spitz, 1994, The control of molecular weight distributions in Ziegler-Natta catalysis, Studies Surf Sci Catal, 89, 109, 10.1016/S0167-2991(08)63026-8 Albizzati, 1997, Propylene polymerisation with catalysts containing divalent titanium, J Polym Sci, 35, 2645, 10.1002/(SICI)1099-0518(19970930)35:13<2645::AID-POLA11>3.0.CO;2-B Kojoh, 1995, A study of chain-end structures of polypropylene prepared with a MgCl2-supported titanium catalyst, Polymer, 36, 5015, 10.1016/0032-3861(96)81630-2 Rishina, 1996, Propylene polymerisation on a titanium-magnesium catalyst in the presence of various organoaluminium compounds, Kinet Catal, 37, 396 Wester, 1997, Kinetic studies of the injection of componomers during polymerisation of ethene and propene with MgCl2-supported Ziegler-Natta catalysts, Macromol Chem Phys, 198, 1623, 10.1002/macp.1997.021980524 Noristi, 1994, Investigation on the particle growth mechanism in propylene polymerisation with MgCl2 supported Ziegler-Natta catalysts, J Polym Sci A, 32, 3047, 10.1002/pola.1994.080321606 Bonini, 1996, Modelling of Ziegler-Natta olefin polymerisation, Gaz Chim Ital, 126, 7584 McKenna, 1995, Modelling of transfer phenomena on heterogeneous Ziegler catalysts: I Differences between theory and experiment in olefin polymerisation (an introduction), J Appl Polym Sci, 57, 371, 10.1002/app.1995.070570314 McKenna, 1996, Modelling of transfer phenomena on heterogeneous Ziegler catalysts: II Experimental investigation of intraparticle mass transfer resistance during the polymerisation of ethylene in slurry, J Appl Polym Sci, 62, 1835, 10.1002/(SICI)1097-4628(19961212)62:11<1835::AID-APP7>3.0.CO;2-R McKenna, 1997, Modelling of transfer phenomena on heterogeneous Ziegler catalysts: III Modelling of intraparticle mass transfer resistance, J Appl Polym Sci, 63, 315, 10.1002/(SICI)1097-4628(19970118)63:3<315::AID-APP6>3.0.CO;2-Q Hamba, 1997, Kinetic study of gas phase olefin polymerisation with a TiCl4/MgCl2 catalyst. II. Kinetic parameter estimation and model building, J Polym Sci A, 35, 2075, 10.1002/(SICI)1099-0518(19970730)35:10<2075::AID-POLA23>3.0.CO;2-C Sacchi, 1996, Polymerisation stereochemistry with Ziegler-Natta catalysts containing dialkylpropane diethers: a tool for understanding internal/external donor relationship, Macromolecules, 29, 3341, 10.1021/ma9514232 Sacchi, 1996, Microstructure distribution of polypropylenes obtained in the presence of traditional phthalate/silane and noveldiether donors: a tool for understanding the role of electron donors in MgCl2-supported Ziegler-Natta catalysts, Macromolecules, 29, 5570 Härkönen, 1995, External silane donors in Ziegler-Natta catalysis: a two-site model simulation of the effects of various alkoxysilane compounds, Polymer, 36, 1499, 10.1016/0032-3861(95)95929-U Härkönen, 1995, External silane donors in Ziegler-Natta catalysis. A three-site model analysis of effects on catalyst active sites, Polymer J, 27, 256, 10.1295/polymj.27.256 Puhakka, 1997, Theoretical investigations on heterogeneous Ziegler-Natta catalyst supports: stability of the electron donors at different coordination sites of MgCl2, J Phys Chem A, 6063, 10.1021/jp963437v Puhakka, 1997, Theoretical investigations on Ziegler-Natta catalysis: coordination of electron donors to titanium modified MgCl2 support, J Mol Catal A: Chem, 123, 171, 10.1016/S1381-1169(97)00062-9 Puhakka, 1996, Theoretical investigations on Ziegler-Natta catalysis: models for the catalyst components, J Organomet Chem, 511, 19, 10.1016/0022-328X(95)05903-3 Puhakka, 1997, Theoretical investigations on Ziegler-Natta catalysis: alkylation of the TiCl4 catalyst, J Mol Catal A, 120, 143, 10.1016/S1381-1169(96)00433-5 McDaniel, 1985, Supported chromium catalysts for ethylene polymerisation, Adv Catal, 33, 47, 10.1016/S0360-0564(08)60258-8 Marsden, 1994, Advances in supported chromium catalysts, Plast Rubber Compos Process Appl, 21, 193 Augustine, 1996, A proposed mechanism for silica supported chromium HDPE catalyst activation, J Catal, 161, 641, 10.1006/jcat.1996.0226 Ruddick, 1996, Mechanistic study of the calcination of supported chromium (III) precursors for ethene polymerization catalysts, J Phys Chem, 100, 11062, 10.1021/jp960033u Chudek, 1996, 29Si magic angle spinning nmr study of Phillips catalysts: multi-exponent spin-lattice relaxation resulting from adsorption of paramagnetic chromium species onto a silica surface, J Chem Soc Faraday Trans, 92, 453, 10.1039/FT9969200453 Hunter, 1997, FTIR study of chromium carbonyl complexes on silica-alumina: active ethene polymerization catalysts, J Chem Soc Faraday Trans, 93, 1205, 10.1039/a606366g Ruddick, 1997, AFM study of the breakup of catalyst particles during ethylene polymerisation, J Phys Chem B, 101, 1791, 10.1021/jp963206o Estenoz, 1996, A structure model for the catalytic polymerization of ethylene using chromium catalysts. Part I: description and solution, Polym Eng Sci, 36, 2208, 10.1002/pen.10618 Estenoz, 1996, A structural model for the catalytic polymerization of ethylene using chromium catalysts. Part II: thermal effects, Polym Eng Sci, 36, 2229, 10.1002/pen.10619 Thune, 1997, Working surface science model for the Phillips ethylene polymerization catalyst: preparation and testing, J Phys Chem B, 101, 8559, 10.1021/jp971753j Messere, 1996, Chromium-based catalyst: derivatives of chromocene in olefins polymerization, Metallocenes '96, 2nd Proceedings of the International Congress on Metallocene Polymerisation, 309 Sinn, 1980, Ziegler-Natta Catalysis, Adv Organomet Chem, 18, 99, 10.1016/S0065-3055(08)60307-X Ribeiro, 1997, Supported metallocene complexes for ethylene and propylene polymerizations: preparation and activity, Ind Eng Chem Res, 36, 1224, 10.1021/ie960475s Soares, 1995, Metallocene/aluminoxane catalysts for olefin polymerisation. A review, Polym React Eng, 3, 131, 10.1080/10543414.1995.11671695 Olabisi, 1997, Group 4 metallocenes: supported and unsupported, J Macromol Sci - Rev Macromol Chem Phys, C37, 519, 10.1080/15321799708018374 Soga, 1995, Recent development in heterogeneous metallocene catalysts, Macromol Symp, 97, 53, 10.1002/masy.19950970106 Ihm, 1994, Molecular weight distribution control with supported metallocene catalysts, Studies Surf Sci Catal, 89, 299, 10.1016/S0167-2991(08)63044-X Lee, 1995, Ethylene polymerization with metallocene and trimethylaluminum-treated silica, Macromol Symp, 97, 195, 10.1002/masy.19950970120 Quijada, 1997, Study of metallocene supported on porous and nonporous silica for the polymerization of ethylene, Catal Lett, 46, 107, 10.1023/A:1019077309484 Dufrenne, 1997, Reactions of Group IV metallocene dichlorides with modified silica gel surfaces, Microchem J, 55, 192, 10.1006/mchj.1996.1412 Woo, 1996, Olefin polymerization catalyzed over zeolite-supported metallocene catalysts, Metallocenes '96, 2nd Proceedings of the International Congress on Metallocene Polymerisation, 271 Woo, 1995, Polymerisation of ethylene over metallocenes confine inside the supercage of a NaY zeolite, Macromol Rapid Commun, 16, 489, 10.1002/marc.1995.030160706 Kitagawa, 1997, Syndiospecific propene polymerization with polymer-supported metallocene catalyst, Polymer, 38, 615, 10.1016/S0032-3861(96)00535-6 Nishida, 1995, Polystyrene-supported metallocene catalysts for olefin polymerizations, Macromol Rapid Commun, 16, 821, 10.1002/marc.1995.030161107 Suzuki, 1997, Solid acid supported metallocene catalysts for olefin polymerization, Polym Prepr (Am Chem Soc, Div Polym Chem), 38, 207 Lee, 1995, Metallocene/MAO polymerization catalysts supported on cyclodextrin, Macromol Symp, 97, 185, 10.1002/masy.19950970119 Soga, 1995, Olefin polymerization with metallocene catalysts supported on polysiloxane derivatives, Macromol Rapid Commun, 16, 905, 10.1002/marc.1995.030161205 Roos, 1997, Gas-phase polymerization of ethylene with a silica-supported metallocene catalyst. Influence of temperature on deactivation, Macromol Rapid Commun, 18, 319, 10.1002/marc.1997.030180408 Sacchi, 1995, Silica supported metallocenes: stereochemical comparison between homogeneous and heterogeneous catalysis, Macromol Rapid Commun, 16, 581, 10.1002/marc.1995.030160807 Juengling, 1997, Propene homo- and copolymerization using homogeneous and supported metallocene catalysts based on Me2Si(2-Me-Benz[e]lnd)2ZrCl2, J Polym Sci A, 35, 1, 10.1002/(SICI)1099-0518(19970115)35:1<1::AID-POLA1>3.0.CO;2-# Steinmetz, 1997, Polypropylene growth on silica-supported metallocene catalysts. A microscopic study to explain kinetic behavior especially in early polymerization stages, Acta Polym, 48, 392, 10.1002/actp.1997.010480907 Bonini, 1995, Propylene polymerization through supported metallocene/MAO catalysts: kinetic analysis and modeling, J Polym Sci A, 33, 2393, 10.1002/pola.1995.080331412 Hlatky, 1996, Supported ionic metallocene polymerization catalysts, Macromolecules, 29, 8019, 10.1021/ma960889x