%0 Journal Article %T Ring‐opening polymerizations of propylene oxide by double metal cyanide catalysts prepared with ZnX2 (X = F, Cl, Br, or I) %A Kim, Il %A Byun, Seung Hoon %A Ha, Chang‐Sik %J Journal of Polymer Science Part A Polymer Chemistry %V 43 %N 19 %P 4393-4404 %@ 0887-624X %D 2005-01-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve