Synthesis and characterization of polyketones containing ..
Electrophilic Aromatic Acylation Synthesis of Wholly Aromatic Polyketones Composed of 2,2'-Dimethoxybiphenylene Units, Polym. J., 35(12) 998-1002, 2003.12
Syntheses of aromatic polyketones and ..
Nickel Complex-Mediated Copolymerization of Regioisomeric 5,5'-Bis(chlorobenzoyl)-2,2'-dimethoxybiphenyls: Synthesis of Wholly Aromatic Copolyketones, Reactive Funct Polym., 58(2) 111-115, 2004.01
Effective Synthesis of Wholly Aromatic Polyketones Using 2.2'-diaryloxybiphenyl and Arenedicarboxylic Acid Derivatives via Friedel-Crafts type Acylation Polymerization, Reactive Funct Polym., 61(1) 71-79, 2004.08
Acyclic diene metathesis polymerization: The synthesis …
Synthesis of Thermally Stable, Wholly Aromatic Polyketones with 2,2'-Dimethoxy-1,1'-binaphthyl-6,6'-diyl Units through Nanosized-Palladium-Cluster-CatalyzedSuzuki-Miyaura Coupling Polymerization, Reactive & Functional Polymers, 79 24-28, 2014
Color Control in π-Conjugated Organic Polymers for Use …
Synthesis of Water-soluble Wholly Aromatic Polyketones Bearing 1,1'-Binaphthyl-6,6'-diyl Units, Reactive & Functional Polymers, 89 18-21, 2015.08
Reynolds at the University of Florida in Gainesville
Synthesis of organosoluble and fluorescent aromatic polyketones bearing 1,1’-binaphthyl units through Suzuki-Miyaura coupling polymerization, Polymer Bulletin, 2015.10
Journal of Natural Products (ACS Publications)
P2O5-MsOH-Mediated Facile Synthesis of Semi-Aromatic Polyketones Bearing 1,4-Cyclohexanediyl Units, Chemistry Letters, 44(12) 1783-1785, 2015.12
The cover shows an illustration of Colchicum autumnale L
Successful Synthesis of Fully Aromatic Polyketones via Nickel Complex-Mediated Aromatic Coupling Polymerization of Bis(chlorobenzoylated) o-Terphenyls, Polym. J., 35(3) 290-292, 2003.03
the corresponding wholly aromatic polyketones.
Novel aromatic polyketones (8a, 8b) without ether linkage in the main chain were successfully synthesized via nickel-mediated aromatic coupling polymerization of bis(chlorobenzoyl)dimethoxybiphenyls (3a, 3b). The polymers affording flexible films were obtained in the reaction where an excess amount of bipyridyl and a stoichiometric amount of the nickel(II) bromide were present. The resulting polyketones (8a, 8b) have sufficiently high molecular weight (inherent viscosity: 0.59 dL/g for polyketone 8a; 0.35 dL/g for polyketone 8b) and a highly amorphous nature with a rather high glass transition temperature: 218 °C for polyketone 8a; 192 °C for polyketone 8b.
Nidal Hammoud Hassan | Professional Profile
AB - A new polymerization reaction for aromatic polyketones is described based on palladium-catalyzed cross-coupling of aromatic diacid chlorides and bis(trimethylstannane) monomers. This method addresses some of the shortcomings of current synthetic approaches to this valuable class of thermoplastics. Most importantly, the polymerization can be carried out under mild conditions and polymer backbones free of ether linkages can be realized. Several high molecular weight, soluble polyketones having good thermal stability are synthesized using this polymerization reaction. An improved synthesis of aromatic bis-(trimethylstannane) monomers is also described that provides monomers in high yield.