Radical Graft Polymerization of Vinyl Monomers Initiated by A20 Groups Introduced Onto a Carbon Black Surface: Effect of azo Groups on Graft Polymerization
Radical Graft Polymerization of Vinyl Monomers Initiated by A20 Groups Introduced Onto a Carbon Black Surface: Effect of azo Groups on Graft Polymerization
复制标题
炭黑表面引入 A20 基团引发乙烯基单体的自由基接枝聚合：偶氮基团对接枝聚合的影响
DOI：
10.1080/00222339108054052
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Y. Sone
中科院分区：
文献类型：
--
作者：
K. Fujiki;N. Tsubokawa;Y. Sone
摘要研究了炭黑表面引入偶氮基团引发乙烯基单体的自由基接枝聚合反应。通过三种方法在炭黑表面引入偶氮基团：2，2 '-偶氮双[2-]反应[（2-咪唑啉-2-基）丙烷]（AIP）与（1）环氧基，由炭黑与氯甲基环氧乙烷反应引入;（2）酰氯基，由表面羧基与亚硫酰氯反应引入;（3）3-氯甲酰基-1-氰基-1-甲基丙基，通过炭黑与4，4 ′-偶氮二（4-氰基戊酸）反应，再与亚硫酰氯反应引入。通过上述方法引入到表面上的偶氮基团的量被确定为0.07- 0.19mmol/g。研究了偶氮基团引入炭黑表面引发甲基丙烯酸甲酯接枝聚合的机理。在聚合过程中，聚甲基丙烯酸甲酯被有效地接枝到聚甲基丙烯酸甲酯上。
Abstract The radical graft polymerization of vinyl monomers from carbon black initiated by azo groups introduced onto the surface was investigated. The introduction of azo groups onto carbon black surface was achieved by three methods: the reaction of 2,2′-azobis[2-(2-imidazolin-2-yl)propane] (AIP) with (1) epoxide groups, which were introduced by the reaction of carbon black with chlorometh-yloxirane; (2) acyl chloride groups, which were introduced by the reaction of carboxyl groups on the surface with thionyl chloride; and (3) 3-chloroformyl-1-cyano-1-methylpropyl groups, which were introduced by the reaction of carbon black with 4,4′-azobis(4-cyanovaleric acid) and then thionyl chloride. The amount of azo groups introduced onto the surface by the above methods was determined to be 0.07-0.19 mmol/g. The graft polymerization of methyl methacrylate was found to be initiated by azo groups introduced onto the carbon black surface. During the polymerization, poly(methyl methacrylate) was effectively grafted ...