โ Scribed by Watt, William R. ;Fisher, C. Donald
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
THE polymerization of &l\_-propylene oxide under the catalytic influence of ferric chloride may be described grossly by equation(l which X and Y represent terminal units, possibly Cl, OH or an unsaturated group, FeCl + X-CH,-OH-0-(CH~-OH-O)~-FH2-CB-Y (I> cR3 9 7 Although the catalyst for the reactio
Al~tract--The rate of anionic polymerization of bulk propylene oxide catalysed by potassium alkoxide in the presence of 18-crown-6 ether was followed dilatometrically. Rate constants were obtained at 40, 50 and 60 ยฐ over a range of crown ether concentrations, so allowing calculation of activation en
The influence o f Lewis bases on the s t e r e o s p e c i f i c i t y and p r o d u c t i v i t y o f c a t a l y t i c systems o f the type MgCl /TiC14/A1Rj as w e l l as on m i c r o t a c t i c i t y and molecular weight o f t8e polymer f r a c t i o n s has been systematically investigated usin