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采用均聚共水解工艺生产适用于油田驱油的具有超高相对分子质量的聚丙烯酰胺 ;该工艺以丙烯酰胺为单体 ,在与碳酸钠共存的条件下 ,使用自制的引发剂进行聚合反应 ,确定了聚丙烯酰胺的优化聚合工艺参数 :溶液的pH值为 12 .5,w(单体 )为 2 5% ,w(氧化还原引发剂 )为 12 .5× 10 - 6 ,w(第 2引发剂 )为 5.0× 10 - 5,w(第 3引发剂 )为 8.0× 10 - 5,w(助剂 1)为 2 .5× 10 - 7,w(助剂 2 )为 1.5× 10 - 6 ,w(链转移剂 )为 2 .5× 10 - 6 ,起始反应温度为 18℃ ;在该条件下 ,合成了相对分子质量高达 2× 10 7,过滤比小于 1.3的聚丙烯酰胺 .
The homopolyhydrolysis process is used to produce the polyacrylamide with ultra-high relative molecular mass suitable for oilfield flooding. The process uses acrylamide as a monomer and uses a self-made initiator for polymerization reaction under the coexistence condition with sodium carbonate , The optimized polymerization parameters of polyacrylamide were determined: pH value of the solution was 12.5, w (monomer) was 25%, w (redox initiator) was 12.5 × 10-6, w 2) was 5.0 × 10 -5, w (third initiator) was 8.0 × 10 -5, w (auxiliary 1) was 2.5 × 10 -7, and w - 6, w (chain transfer agent) was 2.5 × 10 - 6 and the initial reaction temperature was 18 ℃. Under these conditions, polyacrylamide with molecular weight as high as 2 × 10 7 and filtration ratio less than 1.3 .