Abstract
The syntheses of the multiarm stars resulting from the reaction of oligoalcohols with diepoxides have been studied. MPEG 550,750, and 2000 [MPEG = monomethyl ether of poly(oxyethylene glycol)] as precursors of arms and diglycidyl ethers of ethylene (DGEG) or neopentyl glycol (DGNG) as the core forming diepoxides were used. The increase in M n , polydispersity (MWD) and the number of arms (f) in stars with the increase in the concentration of reagents and [diepoxide] o / [MPEG] o ratio, and the decrease in temperature were observed. The final content of unreacted MPEG lowers with increasing concentration of reagents, proportion of the alkoxide groups in the initiator ([RO - ]/[RO - + ROH]), length of MPEG chain, and [diepoxide] o /[MPEG] o ratio and also with decreasing reaction temperature.
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