Metathesis polymerization ofN-aryl norbornene dicarboximides. I

Thermally Stable Copolymers with Pendant “N-Arylimide” Groups Via Reversible Deactivation Radical Polymerization Technique

“…When compared with the feed composition (which was maintained 2:8::NAI:MMA for all the copolymerization reactions), an enhanced incorporation (~ 5-15%) of monomers NAI and MMA in the copolymer backbone was observed (Table I) for the copolymers synthesized using BSI-33 initiator as compared to the copolymers synthesized using EBiB (31). As the incorporation of NAI and MMA monomers in copolymer backbone is more when BSI-33 was used as initiator, the molecular weights of the Poly(PI-ran-MMA), Poly(MPI-ran-MMA), Poly(MOPI-ran-MMA) and Poly(CPI-ran-MMA) was found in (gmol -1 ) as 2.1×10 4 , 2.5×10 4 , 3.5×10 4 and 1.8×10 4 , respectively. Which were observed to be two times greater as compared to Poly(NAI-ran-MMA) copolymers synthesized using EBiB as initiator (31).…”

“…The nadimides are mostly polymerized via ring opening metathesis polymerisation (ROMP) and thermally induced free radical polymerization. This limits the application for the polymerization of vinylic monomer such as methyl methacylate (MMA), since only cyclic monomers can be polymerized via ROMP method (4). Extensive work has been done on the copolymerization of maleimide monomers with styrene and MMA under conventional free radical polymerization (FRP) conditions (5).…”

Palladium(II)-catalyzed addition polymerizations of nadimides with linear alkyl and alicyclic pendant groups

“…Nadimide monomers were prepared according to procedure in the literature [8,14,15] with a slight modification, and the general scheme of monomer and polymer syntheses is shown in Scheme 2. In a typical procedure, exo-NDA was dissolved in glacial actetic acid (20% w/v) in a three-necked flask under a nitrogen atmosphere.…”

Synthesis of high-Tg polymers by ring-opening metathesis polymerization of N-cycloalkylnorbornene dicarboximide

“…These reactions generally occur without any secondary intramolecular cyclizations and formation of any major byproducts. ROMP of norbornene dicarboximides with linear aliphatic and phenyl substituents using appropriate catalysts has also been reported 10–19…”