ABSTRACT:Polystyrene-polyoxetane composite resins were prepared via two-stage polymerizations using p-substituted styrenes CH2 =CHC6 HcO(CH 2 ).Br (7a or 7b), where n=4 or 6, and an isomeric mixture of m-and p-[3-(3-methyl-3-oxetanyl)-2-oxapropyl]styrenes (5) as a cross-linking agent. The terminal bromide linked to a styryl ring at the para position through an 1-oxapentamethylene spacer of7a (n = 4) was applicable to a starting substrate on polymer reactions with some nucleophiles, such as phenols, potassium acetate, and tributylamine, for obtaining polymeric derivatives via several reaction steps. These resins with a pendant quaternary ammonium bromide moiety were also used as phase-transfer catalysts. On the basis of their catalytic activities, qualities and spacer effects of these supporting resins were compared with those of resins obtained by using chloromethylstyrenes instead of 7a or divinylbenzenes instead of 5.
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