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利用过氧化叔丁基为引发剂在高压釜及流动系統中进行乙烯与乙醇的調节聚合反应,当引发剂用量在0.75—3.75%以內,調聚物总收率的增加与引发剂用量的增加几成直线关系。当引发剂用量分別为0.75,1.25,2.50和3.75%时,調聚物总收率分別达到13,18,25和37%。但是引发剂的效率却随其用量的增加而以反比下降。由調聚产物中分离出由丁醇-2至十六醇-2的七种双碳直鏈仲醇,并初步确定各产物的比例。用过氧化氫为引发剂在压力較低时,調聚产物很少,但当压力增加到200—250大气压时,主要产物为聚乙烯,調聚物只有聚乙烯重量的八分之一。用异丙苯过氧化氫得到調聚产物,其用量为2%,总收率达到8%,并分离出n=2—7的仲醇-2。用过硫酸鉀~亚硫酸氫鈉氧化还原系統作引发剂未得到調聚物,但得到乙醛。
The use of t-butyl peroxide as initiator in the autoclave and flow system for the polymerization of ethylene and ethanol, when the amount of initiator within 0.75-3.75%, increase the total yield of telogen and the amount of initiator Increase the number of into a straight line. When the amount of initiator were 0.75, 1.25, 2.50 and 3.75% respectively, the total yield of telogen reached 13, 18, 25 and 37% respectively. However, the efficiency of the initiator decreased inversely with the increase of its dosage. From the telomerization product, seven kinds of double-carbon linear secondary alcohols from butanol-2 to cetyl alcohol-2 were separated, and the proportions of the products were preliminary determined. Hydrogen peroxide as initiator at low pressure, the telomerization product is very small, but when the pressure increases to 200-250 atm, the main product is polyethylene, telomere polyethylene only one eighth of the weight. Cumene was obtained using cumene hydroperoxide in an amount of 2% with a total yield of 8% and n-2-7 secondary alcohol-2 was isolated. With potassium persulfate ~ sodium bisulfite redox system as initiator did not telomere, but acetaldehyde.