초록 |
Since the discovery of a highly active catalyst for olefin/carbon monoxide (CO) copolymerization by Shell. The copolymer is insoluble in common organic solvents and precipitates during copolymerization as irregular snow-white particles of low bulk density (~0.10 g/mL) or as a lump, causing problems in the post-reaction processes. Some of the polymer sticks to the reactor walls and agitator, creating a problem in large-scale synthesis called "reactor fouling". To control the morphology of the polymer particles in the ethylene/CO copolymerization, a strategy is implemented in this work that mimics the traditional suspension polymerization technique. A high activity is realized when the catalyst is harnessed by additional lipophilicity on the anion [dodecylbenzenesulfonate] exhibits a high activity (9 Kg/g-Pd·h) in the two-phases of 1-octanol droplets in water, and well controlled polymer particles are produced without reactor fouling. |