Tetrahedron Letters p. 591 - 594 (1997)
Update date:2022-08-16
Topics:
Park, Byeong-Deog
Lee, Hyeong-Ik
Ryoo, Sun-Jong
Lee, Yoon-Sik
An efficient method for preparing β-hydroxy polystyrene resin is described. Friedel-Crafts alkylation of polystyrene resin with propylene oxide in the of Lewis acid catalyst afford 2-(1-methyl) hydroxyethyl polystyrene (PS-PO). Addition of ethylene oxides to the PS PO in the presence of base gave presence PS-g-PEG resins. The resin contained 60-80%(w/w) of PEG and showed excellent stability in highly acidic media.
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