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Showing 1 to 13 of 13 for “"Homopolymerization"”.
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Hydroxypropylation of lignin and lignin-like model compounds
… were determined. Results revealed that homopolymerization was the major reaction although copolymerization also took place during the hydroxypropylation. Reactions with model compounds indicated that the reaction rate depended on the ratio of total alkalinity to total acidity in the …
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Incorporation of Polar Comonomers Into High Density Polyethylene With a Cyclopentadienyl-Amido Titanium Catalyst
… (1) with MAO as a cocatalyst for ethylene homopolymerization and copolymerizations with 1-TMSO-alkenes to produce a copolymer with polar functionality. Three 1-alkenols of varying length were purchased and derivatized and used for the copolymerization experiments: 2-propen-1-ol, …
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Towards polyethylene-based materials with non-alternatively incorporated carbon monoxide monomer
… phenol. All complexes were active for ethylene homopolymerization (featuring activity up to 81.3 × 105 g polymer × mol Ni–1 × hr–1 and Mn up to 4.2 kg/mol) and ethylene/methyl acrylate (MA) copolymerization (MAmol % up to 8.3%). Moreover, three of the five complexes were shown to be active for …
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Copolymerization of a P-Vinylbenzyl-Ended Poly(Oxyethylene) With Vinyl Monomers and Some Reactions of Poly(Oxyethylene) Derivatives
… corresponding amino polymer was not successful. Homopolymerization of mPEG-MS under a variety of conditions resulted in incomplete polymerization of the macromonomer. In addition, the reactions of mPEG-maleic anhydride {prepared from the reaction of 5-[methoxypoly(oxyethylene)]-(3E)-1,3 …
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Controlled polymerization of alkyl vinyl ethers via 'covalent' propagating species
… with the previous kinetic result of the homopolymerization. For oligomers, incorporation of a few units of ethyl vinyl ethers at the chain end facilitates the cross addition reaction. Synthesized amines are characterized by various spectroscopic methods. Then, titrated molecular weights …
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Miscibility, Viscosity, Density, and Formation of Polymers in High-Pressure Dense Fluids
… poly (ε-caprolactone) (PCL) and their blends. Homopolymerization and copolymerizations of methyl methacrylate (MMA) and 2-methylene-1,3-dioxepane (MDO) in mixtures of acetone + CO2 have also been explored. The viscosities and densities of acetone + CO2 mixtures were measured in the temperature …
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Reversibly Photo-Crosslinkable Polycarbonate-Based Polymersomes for Drug Encapsulation and Delivery
… using ester, ether, or amide linkages. While the homopolymerization of these functionalized monomers proved challenging due to their high melting points, both cinnamoyl and coumarin functionalized monomers were successfully copolymerized with trimethylene carbonate (TMC) at 100 ℃ using a …
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Synthesis and controlled radical polymerization of multifunctional monomers
… acrylates and acrylamides were suitable for homopolymerization and block copolymerization by the RAFT process. Thus far, it is difficult to homopolymerize multifunctional methacrylamides in controlled way.
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Metal-Free Photoredox-Mediated Ring Opening Metathesis Polymerization
… did not copolymerize. Monitoring the homopolymerization revealed a low rate of conversion and a sigmoidal shape to the conversion vs. time plot, which is consistent with slow initiation kinetics. Each of these polar monomers can facilitate post-polymerization functionalization. An …
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Studies Related to the Alternating Copolymerization of Substituted Stilbenes
… t-butyl functional group in the copolymer. The homopolymerization of EMS-III via free radical polymerization, anionic polymerization and cationic polymerization was attempted. However, no polymer was obtained from any of these polymerization methods. In anionic polymerization, the solution …
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Modelling of colloidal dynamics in complex soft matter systems
… a mathematical model which, by using the pseudo-homopolymerization approach, describes the kinetics of this polymerization mode. By using the state-of-the-art models for radical entry and desorption the framework has the ultimate goal of predicting crucial kinetic variables such as the monomers …
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Rapid on-demand polymerization for multifunctional materials
… of COD is less than DCPD, the heat released by homopolymerization of COD is sufficient to sustain front propagation with a velocity suitable for time-efficient manufacturing (ca. 0.6 mm/s). Furthermore, FROMP copolymerization of COD and DCPD produces crosslinked polymers with widely tunable …
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Branched Glycopolymers
… linear and branched glycomethacrylates via ATRP. Homopolymerization resulted in linear poly(MAIGlc) of controlled molecular weight and molecular weight distribution. Randomly branched poly(MAIGlc)s were synthesized using a methacrylic inimer, 2-(2-bromoisobutyryloxy)ethyl methacrylate (BIEM) via …