Polymerization behavior of 7,8-bis(butoxycarbonyl)-7,8-dicyanoquinodimethane

Asymmetric anionic polymerization of 7‐cyano‐7‐ethoxycarbonyl‐1,4‐benzoquinone methide

“…Asymmetric anionic polymerization was carried out in an apparatus reported previously. 15 150 mg (0.74 mmol) of 1 placed in the apparatus was dried under reduced pressure and then filled with nitrogen. Into it was added 3.2 mL of dichloromethane by a syringe, and the monomer solution was cooled to À78 C. The polymerization was initiated by adding the initiator solution, which was prepared by mixing organolithium initiator (1.0 equiv.)…”

Polymerization behavior of 2,5-bis(dicyanomethylene)- 2,5-dihydrofuran

“…For the case of BuLi or BF 3 OEt 2 , the polymerization was carried out with the apparatus reported previously. 18 A given amount of TCNF was placed in the apparatus, which was filled with nitrogen.…”

Synthesis and polymerization of 2,5-dimethylene-2,5-dihydrothieno[3,2-b]thiophene derivatives: The structure and reactivity of quinonoid monomers

“…21 A given amount of the TT derivatives (4a, 4b, or 4c) as a monomer was placed in the apparatus, which was filled with nitrogen. Into it was introduced a given amount of solvent such as dichloromethane, chloroform, THF, or toluene by a syringe.…”

“…Copolymerizations of 4a-c with BCQ as a homopolymerizable, electron-accepting, and highly conjugated comonomer 21 were attempted in the presence of AIBN in chloroform at 60°C. In all cases, white powders, which are soluble in dichloromethane, chloroform, acetone, and THF, but insoluble in hexane and methanol, were obtained and then their molecular weights were determined by GPC measurement to be 20,000 -110,000.…”