(2-甲基丙烯酰氧乙基)三甲基氯化铵-丙烯酰胺反相微乳液共聚合研究

采用SPAN-OP复合乳化剂和K_2S_2O_8-Na_2SO_3氧化还原引发剂,进行(2-甲基丙烯酰氧乙基)三甲基氯化铵-丙烯酰胺的反相微乳液共聚合。测得单体的竞聚率r_(DM·MC)=1.11±0.16,r_(AM)=0.53±0.08。在单体总浓度为20—40％(wt),引发剂浓度为0.01—0.05％,乳化剂浓度为10—18％,聚合温度为299K的条件下,得到共聚反应动力学方程:R_p=kM]~(1.07)I]~(0.52)E]~(0.90),文中对上述结果做了解释。

STUDIES OF INVERSE MICROEMULSION COPOLYMERIZATION OF (2-METHACRY LOYLOXYETHYL) TRIMETHYL AMMONIUM CHLORIDE AND ACRYLAMIDE

Using SPAN-OP composite emulsifier and K²S²O⁸Na²SO³ redox initiator ,the inverse mi-croemulsion copolymerization of (2-methacryloyloxyethyl) trimethyl ammonium chloride (DM. MC) and acrylamide (AM) was developed. The monomer reactivity ratios are rDM.MC= 1.11±0.16 and rAM = 0. 53±0. 08. Under the conditions of total concentration of monomer being 20%-40%(wt), initiator concentration being 0.01%-0. 05%,emulsifier concentration being 10%-18% and polymerization temperature being 299 K,the kinetic equation of copolymerization can be expressed:Rp=kM]^1.07I]^0.52E]^0.90.In this paper,above results were explained.