化工学报2018，Vol.69Issue(2)：563-569,7.DOI:10.11949/j.issn.0438-1157.20170870
丙烯酰胺与甲基丙烯酰氧乙基三甲基氯化铵反相乳液聚合动力学
Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization
陈勇 1单国荣1
作者信息
- 1. 化学工程联合国家重点实验室,浙江大学化学工程与生物工程学院,浙江 杭州 310027
- 折叠
摘要
Abstract
Inverse emulsion polymerization kinetics of acrylamide (AM) and 2-methylacryloylxyethyltrimethyl ammonium chloride (DMC) has been investigated by using the mixture of sorbitan monooleate (Span 80) and polyethylene glycol sorbitan monooleate (Tween 80) as the composite emulsifier, liquid paraffin as the oil phase and 2,2′-azobis[2-(2-imidazolin-2-yl) propane]-dihydrochloride as the initiator. The rate equation of AM and DMC inverse emulsion polymerization could be represented as Rp= k[M]2.12[I]0.55[E]0.65, and the apparent activation energy of AM and DMC inverse emulsion polymerization was 80.65 kJ·mol-1. Relationship of reaction rate change in AM and DMC inverse emulsion polymerization with time indicated that the nucleation mechanism tended to droplet nucleation. Monomer reactivity ratios of AM and DMC were determined as rAM= 0.23,rDMC= 1.93 by Fineman-Ross methods. The results showed that random copolymerization of AM and DMC occurred on the polymer chains. The intrinsic viscosity of copolymer could be increased by enhancing the content of monomer, decreasing the dose of initiator, increasing the amount of emulsifier and reducing the reaction temperature.关键词
动力学/反相乳液/聚合/成核机理/特性黏数Key words
kinetics/inverse emulsion/polymerization/nucleation mechanism/intrinsic viscosity分类
化学化工引用本文复制引用
陈勇,单国荣..丙烯酰胺与甲基丙烯酰氧乙基三甲基氯化铵反相乳液聚合动力学[J].化工学报,2018,69(2):563-569,7.
