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Preparation, Characterization, and Adsorption Performance of an Interlayer-Expanded PPy/Maghnite-Cu<sup>2+</sup> Nanocomposite for Methylene Blue Removal. [PDF]
Polymers (Basel)Bekhti MA +6 more
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Mechanism of the influence of cationic moieties on the performance of fluid loss additives for well cementing <i>via</i> fluorescence labeling. [PDF]
RSC AdvFeng Q, Wang C, Yang T, Yang J, Wang J.
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Journal of Polymer Science Part C: Polymer Symposia, 1967
AbstractThe lowering of degree of polymerization in cationic copolymerization was investigated for the isobutene–styrene copolymerizations in particular. In this system the simultaneous presence of a reactive isobutene cation and reactive styrene monomer acting as a chain transfer agent, a situation which cannot be visualized in homopolymerization, was
Seizo Okamura +4 more
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AbstractThe lowering of degree of polymerization in cationic copolymerization was investigated for the isobutene–styrene copolymerizations in particular. In this system the simultaneous presence of a reactive isobutene cation and reactive styrene monomer acting as a chain transfer agent, a situation which cannot be visualized in homopolymerization, was
Seizo Okamura +4 more
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Redox Intitiated Cationic Polymerization
Macromolecular Symposia, 2009AbstractTwo novel redox initiator systems have been developed for carrying out the cationic polymerizations of vinyl and heterocyclic monomers. The initiators are based on various onium salts as the oxidant together with an alkylborane or an organosilane as the reducing agent.
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Cationic polymerization of formaldehyde
Die Makromolekulare Chemie, 1968AbstractCationic polymerization of monomeric formaldehyde has been studied at low temperature. It was found that high molecular weight polyoxymethylene with the reduced viscosity higher than 1.0 dl/g was readily obtained when the polymerization of formaldehyde was carried out in saturated hydrocarbons in the presence of LEWIS acids, BRÖNSTED acids, I2,
Tadashi Yamaguchi +2 more
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Cationic polymerization of caprolactam
European Polymer Journal, 1968Abstract The theories on the cationic polymerization of caprolactam, at temperatures above the melting point of the polymer, are compared and discussed. The results of fractionations and molecular weight distributions, carried out on polymers prepared with caprolactam hydrochloride as initiator under anhydrous conditions, are used as the basis of the
G.B. Gechele, G. Stea, F. Manescalchi
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Cationic polymerization of cyclocarbonates
Makromolekulare Chemie. Macromolecular Symposia, 1992AbstractTrimethylenecarbonate (TMC) and neopentane diol carbonate (NPC) were polymerized with two groups of initiators, proton and carbenium ion donors or Lewis acids. Initiation with methyltriflate, triflic acid or triethyloxonium tetrafluoroborate in solution gave satisfactory yields (up to 90%) but only low molecular weights (Mn < 5000), due to ...
Hans R. Kricheldorf +2 more
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Cationic polymerization of glycidol
Doklady Chemistry, 2017Polymerization of glycidyl alcohol induced by boron trifluoride tetrahydrofuran complex (BF3 ∙ THF) in ethylene glycol dimethyl ether (DME) and in the presence of BF3–water or BF3–glycerol catalyst system was studied. Under any of the conditions employed, the reaction gave water-soluble oligoether with polydispersity of ~1.1.
T. V. Grinevich +3 more
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