亚甲蓝-聚苯乙烯磺酸钠增感丙烯酰胺激光聚合

Polymerization of Acrylamide Induced by He-Ne Laser with Methylene Blue-Poly(sodium p-styrenesulfonate)as a Sensitizer

在不同聚苯乙烯磺酸钠与亚甲蓝(MB)当量比(P/D)下,以He-Ne激光为光源,对MB-三乙醇胺的光氧化还原行为,及其增感丙烯酰胺(AM)聚合动力学进行了研究。MB聚集状态受P/D大小的影响,当P/D=0,0.1和1000时,MB主要以单分子体存在,MB的光褪色速率、光褪色量子产率、AM的聚合速率和消耗量子产率都较高。

Under different mole equivalent ratios of poly(sodium p-styrenesulfonate) segment to methylene blue(P/D),the photoredox behavior of methylene blue(MB) -triethanolamine and the polymerization kinetics of acrylamide sensitized system have been investigated.It was found that the association of MB is affected by P/D values,the photofading rate,and qnantum yield for photofading of MB,and the polymerization rate and quantum yield for monomer consumption are higher at P/D=O,0.1,and 1000 where MB exists predominantly in monomeric form.