لایب سان

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Title......Page 1 Copyright......Page 2 Series Information......Page 3 FOREWORD......Page 4 1 The Nature of Organometallic Polymerization— A Review......Page 6 Literature Cited......Page 10 2 Preformed Alkylaluminum-Titanium Tetrachloride Catalysts for the Polymerization of Isoprene......Page 11 Separated Catalysts......Page 12 Results......Page 13 UNAGED CATALYSTS......Page 14 AGED CATALYSTS......Page 17 Separated Catalysts......Page 18 CATALYTIC ACTIVITY OF SEPARATED SOLIDS......Page 19 MODIFICATION OF SOLIDS......Page 21 Discussion......Page 24 Literature Cited......Page 27 3 Polymerization of 1,3-Pentadiene to cis-1,4 Stereoisomers......Page 29 Polymerization......Page 30 Characterization and Structure of the cis-1,4 Polypentadie......Page 34 Mechanism of Formation......Page 36 Mode of Coordination of the Monomer.......Page 37 Models for the Stereospecific Polymerization......Page 39 Literature Cited......Page 40 4 Polymerization Mechanism of Nonpolar Monomers by Lithium Alkyls......Page 41 Chain Initiation......Page 43 Chain Propagation......Page 45 Copolymerization......Page 48 Literature Cited......Page 49 5 Electron Donors in Diene Polymerization......Page 51 VCl3/AllEt3/iPr20/Isoprene......Page 55 AlEt2Cl/ C0X2NR3/(MeOH)/Butadiene......Page 58 Cobalt Chloride......Page 59 Other Cobalt Compounds......Page 61 AlEt2Cl/CoX2NR3/(MeOH)/Butadiene......Page 63 Structure of the Catalyst......Page 64 Literature Cited......Page 71 6 Polymerization of Higher Aldehydes......Page 72 Literature Cit......Page 83 Classifying Stereoisomerism in Polymers on the Basis of Repetition of a Three-Dimensional Motif......Page 85 Stereoregular Structures of Polypropylene Oxide......Page 87 Literature Cited......Page 92 8 Characterizing Stereosequence Length of Propylene Oxide Polymers from Different Catalysts......Page 93 Outline of Theory to Characterize Stereosequence Length......Page 94 Characterizing the Stereosequence Length of Propylene Oxide Polymers......Page 96 Temperature Dependence of Percent Crystallinity. Efficiency of Crystalliza­ tion and "Car Parking" Correction......Page 99 Effect of Stereosequence Length On Crystallization Kinetics and Morphology......Page 100 I. Relations Between Probability (Pi) of Triad States and Transition Probability Parameters (a i)......Page 102 II. Theory For Determing Parameters In Probability Model For Stereo­ sequence Structure of Polymer Chains From Percent Crystallinity and Melting Temperature......Page 103 Literature Cited......Page 109 9 An Initial Survey of the Polymerization Kinetics of 4-Methylpentene-1......Page 110 Polymerization......Page 111 Treatment of Data......Page 112 Results and Discussion......Page 113 Literature Cited......Page 119 10 Transition Metal Catalyst Systems for Polymerizing Propylene......Page 120 Experimental Procedure......Page 121 Polymerization Activity......Page 122 Composition of the Precipitates......Page 123 Influence of Activator......Page 127 Influence of Temperature on Polymerization......Page 128 Influence of Activator......Page 129 Activation with Mixed Alkylaluminum Compounds......Page 131 VCl4-Based Catalysts......Page 133 VOCl3-Based Catalysts......Page 136 Discussion......Page 138 Literature Cited......Page 139 11 Transition Metal Catalyst Systems for Polymerizing Butadiene and Isoprene......Page 141 Evaluating the Polymer......Page 142 Catalyst Preparation......Page 144 Polymerization......Page 148 Catalysts Based on VCl4......Page 152 Catalysts Based on Cobalt Compoun......Page 153 Discussion......Page 155 Literature Cited......Page 156 INDEX......Page 158

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