2-Chlorophenol → HCID 131720718, compound

Participants

Reaction Steps

Methylhydroquinone (1.9 moles, 235.87 g), bisphenol-A (0.1 moles, 22.83 g), chlorophenyl carbonate (2.04 moles, 577.12 g) and tetrabutylammonium tetraphenylborate (1.6 mmol, 0.899 g) were added to a 1 L 3-neck flask and melted at 165° C. with overhead stirring. 85 wt % chlorophenol (3.38 mole, 350 mL,) was collected by distillation at about 220° C. followed by a slight vacuum at 230° C. The molten prepolymer was quickly poured onto a foil-lined pyrex dish to obtain a solid (369 g). Subsequent polymerization took place in a 2CV Helicone reactor (500 mL capacity). The prepolymer (200 g) was added at 300° C. and stirred slowly until molten. Once molten, vacuum was applied and the system heated to about 325° C. (stirrer setting=6.5). After about 10 minutes, the vacuum reached about 2.5 mm Hg. The polymer was extruded after 25 minutes to obtain about 122 g of light pink strands (flexible in clear areas and brittle in cloudy areas).

Provenance & Evidence