K2S2O8/Na2SO3引发St/BA微乳液共聚合的研究

Study on St/BA Microemulsion Copolymerization Initiated by K2S2O8/Na2SO3

摘要: 以十二烷基硫酸钠／十二烷基苯磺酸钠(SDS／SDBS)为乳化剂，过硫酸钾／亚硫酸钠(K2S2O3／Ni2SO3)为引发剂进行苯乙烯／丙烯酸丁酯(SL／BA)微孔液共聚合反应。研究了引发剂浓度IOR、单体总浓度M、乳化剂含量E和聚合温度T对微孔液共聚合最大反应速率Rmax和共聚物粘均分子量^-Mη的影响，测定了共聚单体的竞聚率，结果得到：Rmax∝I^0.98ORM^0.81E^-0．34e^-4712／T，^-Mη∝I^-0.27ORM^0.48E^-0.68e^2304/T；rSt=0.598，rBA=0.0206。

Abstract: Styrene/butyl acrylate(St/BA) microemulsion copolymerization was carried out with sodium dodecyl sulfate and sodium dodecyl benzene sulfonate as emulsifier, K2S2O8/ Na2SO3 as initiator. The effects of initiator concentration( I OR ) , total monomer con