Dimethyl terephthalate → HCID 118047294, compound

Participants

Reaction Steps

Into a 500 mL separable flask, 48.1 g of dimethyl terephthalate (manufactured by Wako Pure Chemical Industries, Ltd.) and 112 g of 3-amino-1-propanol (manufactured by Wako Pure Chemical Industries, Ltd.) were placed and subjected to heat drying at 135° C. for 6.5 hours under nitrogen gas stream. To the reaction mixture, isopropyl alcohol was slowly added to thereby provide 59.8 g of N,N-bis(3-hydroxypropyl)terephthalic acid amide, which is an amide group-containing diol. Under a nitrogen gas atmosphere, into a reactor equipped with a mixer, 8.72 g of N,N-bis(3-hydroxypropyl)terephthalic acid amide, 29.8 g of polyethylene glycol (trade name: PEG2000U, manufactured by NOF CORPORATION), and 50 g of dehydrated dimethylacetamide (organic solvent, manufactured by Wako Pure Chemical Industries, Ltd.) were placed and heated at 100° C. under stirring to thereby provide a uniform solution. To this solution, a solution prepared by dissolving 11.5 g of 4,4-diphenylmethane diisocyanate (manufactured by Wako Pure Chemical Industries, Ltd.) in 10 g of dehydrated dimethylacetamide was gradually dropped. After the dropping was completed, the solution was heated for an hour under stirring. The reaction solution was cooled to 80° C. and subsequently reprecipitation was caused with 620 g of acetonitrile. The solid precipitate was isolated by filtration and then washed twice with 160 g of acetonitrile. Thus, a polymer was obtained.

Provenance & Evidence