Nishioka, AtsuoPolymer JournalY. Inoue, R. Chujo, A. Nishioka, Polymer J. 2 , (1) 13 (1971).Ando I, Chujo R, Nishioka A. Polymerization mechanism in methyl methacrylate-grignard reagent system. I. Phenyl- magnesium bromide. Polym J 1970;1:609....
The mechanism of stereospecific polymerization in a methyl methacrylate–Grignard reagent (CHMgBr) system is studied as a function of polymerization temperature with high-resolution nuclear magnetic resonance (NMR) spectroscopy for obtained polymers. It is found that the maximum temperature during the ...
Polymerization of methyl methacrylate (MMA) with aliphatic primary amines and carbon tetrachloride has been investigated in th dimethylsulfoxide medium by employing a dilatometric technique at 60掳C. The rate of polymerization (Rp) has been evaluated under the conditions, [CCl4]/[amine] 1. The ...
THE EFFECTS OF HINDERED AMINES ON METHYL METHACRYLATE POLYMERIZATION受阻胺对甲基丙烯酸甲酯聚合的影响MTMP甲基哌啶自由基聚合醇酯甲基丙烯酸共聚合AIBN溶剂对引发剂聚合速度本文研完了不同引发体系对带受阻胺基团的单体4-甲基丙烯酸2,2,6,6-四甲基哌啶醇酯(TMPM)自由基聚合的影响。分析比较了偶氮型引发剂和过氧化...
A kinetic study on the polymerization of methyl methacrylate (MMA) initiated by trichloroacetyl chloride (TAC) and water was made dilatometrically. The reaction proceeds by a radical mechanism, and the initial rate of polymerization is described by the equation: The overall activation energy of the...
The mechanism for the polymerization of vinyl monomers with the Ni(acac) 2 –MAO catalyst is discussed. 2000 Society of Chemical Industry 展开 关键词: methyl methacrylate Ni(acac) 2 –methylaluminoxane kinetic study tacticity polymerization mechanism ...
The overall activation energies for the polymerizations of methyl methacrylate and p-fluorostyrene were found to be 54.5 and 59.6 kJ/mol respectively. A free-radical mechanism is postulated. 展开 DOI: 10.1016/0014-3057(85)90157-0 被引量: 11 ...
The kinetics of ceric-thiourea initiated aqueous polymerization of methyl methacrylate in 1 M H 2SO 4 have been studied. Ceric ion and thiourea initially form an 1:1 complex which then reacts with uncomplexed ceric ion to form the initia... D Pramanick - 《Journal of Polymer Science Part...
Polymerization of methyl methacrylate in the presence of the system tributyl aluminium-chromium acetylacetonate-2,2′-dipyridyl Methyl methacrylate polymerization in presence of the system chromium acetyl-acetonate-triisobutyl aluminium takes place in accordance with a mechanism of anionic type. A means of...
Y-Al (i-Bu)3 -CL catalyst ismost likely to take place via a coordinate anionic mechanism. The microstructure of poly(methyl methacrylate) is determined by IR, DSC, 1H NMR and 13C NMR. Syndiotacticity ofPMMA (polymerization at 60℃) is as high as 86. 4% and its Tg, is 123. 9℃...