An In-Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non-Ionized Acrylic Acid in Aqueous Solution

Calista Preusser; Robin A. Hutchinson

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An In-Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non-Ionized Acrylic Acid in Aqueous Solution

机译：水溶液中丙烯酰胺和非离子化丙烯酸自由基共聚动力学的原位NMR研究

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An in-situ NMR technique has been developed to study the aqueous phase copolymerization of non-ionized acrylic acid (AA) and acrylamide (AM) under near-isothermal conditions at much higher monomer contents than previously reported in the literature. The composition data obtained over the entire conversion range provides a precise estimate of monomer reactivity ratios not available from low conversion data. The set of experiments, with initial monomer content in aqueous solution varied between 5 and 40%, were well-fit over the complete conversion range by r_(AA)=1.24±0.02, and r_(AM)=0.55±0.01. It was found that the rate of monomer conversion increases with increasing monomer concentration, a trend contrary to the known decrease in the AA and AM chain-end propagation rate coefficients.

机译：已经开发了一种原位NMR技术来研究非离子化丙烯酸（AA）和丙烯酰胺（AM）在接近等温条件下的水相共聚，其单体含量比文献中先前报道的高得多。在整个转化率范围内获得的组成数据可精确估算低转化率数据无法提供的单体反应率。这组实验的水溶液中的初始单体含量在5％至40％之间变化，在整个转化率范围内r_（AA）= 1.24±0.02，r_（AM）= 0.55±0.01很好地拟合。发现单体转化率随单体浓度的增加而增加，这一趋势与已知的AA和AM链端传播速率系数的降低相反。

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《Macromolecular symposia》 |2013年第1期|共16页
作者
Calista Preusser; Robin A. Hutchinson;
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正文语种 eng
中图分类高分子化学（高聚物）;
关键词
In-Situ NMR; Radical Copolymerization; Aqueous Solution;

机译：原位NMR;自由基共聚;水溶液;

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1. An In-Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non-Ionized Acrylic Acid in Aqueous Solution [J] . Calista Preusser, Robin A. Hutchinson Macromolecular symposia . 2013,第1期

机译：水溶液中丙烯酰胺和非离子化丙烯酸自由基共聚动力学的原位NMR研究
2. The Combined Influence of Monomer Concentration and Ionization on Acrylamide/Acrylic Acid Composition in Aqueous Solution Radical Batch Copolymerization [J] . Preusser Calista, Ezenwajiaku Ikenna H., Hutchinson Robin A. Macromolecules . 2016,第13期

机译：水溶液自由基间歇聚合中单体浓度和电离对丙烯酰胺/丙烯酸组成的综合影响。
3. SP-PLP-EPR study into termination and transfer kinetics of non-ionized acrylic acid polymerized in aqueous solution [J] . Barth J., Meiser W., Buback M. Macromolecules . 2012,第3期

机译：SP-PLP-EPR研究水溶液中聚合的非电离丙烯酸的终止和转移动力学
4. An In-Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non-Ionized Acrylic Acid in Aqueous Solution [C] . Calista Preusser, Robin A. Hutchinson The International Workshop “Polymer Reaction Engineering” . 2013

机译：水溶液中丙烯酰胺和非电离丙烯酸的自由基共聚动力学的原位NMR研究
5. I. THE ELECTROCHEMISTRY OF NITRIC OXIDE AND A NITROUS ACID AT A MERCURY ELECTRODE IN AQUEOUS SOLUTIONS. II. ELECTROCHEMISTRY AND HYDROLYSIS KINETICS OF THE 2,2'-BIPYRIDINE COMPLEXES OF IRON(III) AND IRON(II); ELECTROCHEMICAL KINETIC PARAMETERS FOR SEVERAL IRON COMPLEXES. III. PROTON NUCLEAR MAGNETIC RESONANCE STUDIES OF URANIUM(IV)-ETHYLENE DIAMINETETRAACETIC ACID COMPLEXES IN AQUEOUS (DEUTERIUM-OXIDE) SOLUTIONS. [D] . EHMAN, DEWAYNE LEE. 1969

机译：I.水溶液中汞电极上一氧化二氮和亚硝酸的电化学二。铁（III）和铁（II）的2,2'-联吡啶络合物的电化学和水解动力学；多种铁络合物的电化学动力学参数。三，铀（IV）-水溶液（氧化氘）中铀（IV）-乙撑双氨基乙酸复合物的质子核磁共振研究
6. Controlled radical fluorination of poly(meth)acrylic acids in aqueous solution [O] . Yucheng Dong, Zhentao Wang, Chaozhong Li -1

机译：水溶液中聚（甲基）丙烯酸的受控自由基氟化
7. Peculiarities of Radical Homo- and Copolymerization of Acrylic, Methacrylic and Itaconic Acids in Complexing Solutions [O] . Gerardas Bajoras, Ricardas Makuška 1986

机译：丙烯酸，甲基丙烯酸和衣康酸络合溶液中的自由基均聚物和共聚的特性

An In-Situ NMR Study of Radical Copolymerization Kinetics of Acrylamide and Non-Ionized Acrylic Acid in Aqueous Solution

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