Abstract

A copolymer of acrylamide (AA) and 2-acrylamido-2-methylpropane sulfonic acid sodium salt (AMPSNa) was prepared by inverse emulsion radical polymerization in the presence of azobisisobutyronitrile initiator. The effect of temperature, initiator, and sum of the monomers on the rate of inverse emulsion copolymerization of acrylamide and AMPSNa was studied by dilatometry. The kinetic parameters of the process were determined, including the effective copolymerization constants, reaction activation energy, reaction rate, and orders with respect to the initiator and monomers. The synthesized AA–AMPSNa copolymer was characterized by IR spectroscopy and elemental analysis. The intrinsic viscosity of the copolymers was determined, and the viscosity-average molecular weight was calculated by the Mark–Kuhn–Houwink equation. The drag reduction was studied by capillary turbulent viscometry. The AA–AMPSNa copolymers can be efficiently used as drag reduction additives to water flows.

中文翻译：

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丙烯酰胺与2-丙烯酰胺-2-甲基丙烷磺酸钠的反相共聚制备水溶性减阻剂

摘要

在偶氮二异丁腈引发剂存在下，通过反相乳液自由基聚合制备丙烯酰胺（AA）和2-丙烯酰胺基-2-甲基丙烷磺酸钠盐（AMPSNa）的共聚物。采用膨胀法研究了温度、引发剂和单体用量对丙烯酰胺与AMPSNa反相乳液共聚速率的影响。确定了该过程的动力学参数，包括有效共聚常数、反应活化能、反应速率以及引发剂和单体的顺序。合成的 AA-AMPSNa 共聚物通过红外光谱和元素分析进行​​表征。测定共聚物的特性粘度，并通过 Mark-Kuhn-Houwink 方程计算粘均分子量。通过毛细管湍流粘度测定法研究减阻。AA-AMPSNa 共聚物可以有效地用作水流的减阻添加剂。