Effects of copolymerization ratio of BAMO/NMMO and catalyst on sensitivity and burning rate of HMX propellant[ J]. Propellants, Explosives, Pyrotechnics, 1995 (20) : 215 - 221.Kimura E,Oyumi Y.Effects of copolymerization rati-o of BAMO/NMMO and catalyst on sensitivity andburning rate of HMX...
that is, r is the ratio of the rate constant for a reactive propagation species adding to its type of monomer to the rate constant for its addition of the other monomer. Here, r1 and r2 are monomer reactivity ratios. Eq. (2.43) then becomes (2.44)dM1dM2=r1M12M22+M1M2M1M2+r2 This ...
Further, in the presence of inhomogeneity, pseudore-activity ratio products calculated from dyads will always be fallaciously high. Published data for olefin copolymerizations using heterogeneous Ziegler-Natta catalysts confirm that these systems follow the Wall equation but are nonhomogeneous.doi:10.1080...
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High-temperature solution polymerization of butyl acrylate/methyl methacrylate: reactivity ratio estimation. Hakim, M.,Verhoeven, V.,Mcmanus, N.T.,Dubé, M.A.,Penlidis, A. Journal of Applied Polymer Science . 2000Ren, S.; Hinojosa-Castellanos, L.; Zhang, L.; Dube, M.A. Bulk free-...
In these kinetic studies, the apparent propagation rate constants and induction periods with variations in the feed ratio and polymerization temperature were estimated. The reactivity ratios determined based on the kinetic studies were close to unity. In addition, the reactivities of MMA and EMA ...
The monomer reactivity ratio can be determined without the complicated processings such as separating, drying and analysing the copolymers.doi:10.1002/apmc.1976.050520111HiroshiNarita,YasuhiroHoshii,SeishiMachidaAngewandte Makromolekulare Chemie
The monomer reactivity ratios increased with increasing the molar ratio of acrylonitrile to styrene. The obtained polymer was characterized by C nuclear magnetic resonance and gel permeation chromatography. The living characteristics were demonstrated by chain extension experiment....
(Fig.3a,band Supplementary Figs.38–42) simply based on copolymerization ratios and sidechain groups. The effect of the copolymerization ratio was investigated by comparing the mechanical tensile curves of the copolymers with different monomer ratios (Supplementary Fig.38). It was found that the ...
look rod-like. It’ll be demonstrated later on that the alternating organometallic copolymerization between these two monomers can be achieved with molecular precision by controlling the P-Br to A-H ratio (denoted asr). Thervalue can be controlled by two strategies, i.e., stoichiometric dosage...