نتایج جستجو برای: copolymerization
تعداد نتایج: 2777 فیلتر نتایج به سال:
Copolymerization of ethylene with polar vinyl monomers to yield functionalized and possibly easier recyclable polyolefins is challenging it currently being pursued mainly using expensive Pd-based catalysts. Herein, the copolymerization methyl acrylate (MA) achieved by dibenzocycloheptyl-substituted aryliminopyridyl Ni(II) complexes, affording copolymers selectively in-chain incorporated MA unit...
Asymmetric amplification in the copolymerization of cyclohexene oxide and carbon dioxide was demonstrated using chiral zinc complexes, prepared from diethylzinc, diphenyl(pyrrolidin-2-yl)methanol, and ethanol.
The radical copolymerization of vinylidene fluoride (VDF) with 4-bromo-1,1,2-trifluorobut-
The preparation of several graft copolymers obtained by radiation induced graft copolymerization of typical monomers onto poly (3hydroxybutyrate) is reviewed. The general mechanisms by which graft copolymerization reaction proceed under various irradiation conditions are described. Main attention is given to the structure, properties, synthesis and characterization of the graft product, as well...
The synthesis of a zwitterionic Pd(II) complex supported by an anionic bis(phosphino)borate ligand, Ph(2)B(CH(2)PPh(2))(2) (abbreviated as [Ph(2)BP(2)]), is reported. The new complex, [Ph(2)BP(2)]PdMe(THF), is active for CO and ethylene copolymerization. The copolymerization activity and polyketone molecular weight for the neutral, zwitterionic system are compared with those for the cationic sy...
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