Rheo-Raman: A Promising Technique for In Situ Monitoring of Polymerization Reactions in Solution

被引：19

作者：

Chevrel, Marie-Claire ^{[1
]}

Hoppe, Sandrine ^{[1
]}

Falk, Laurent ^{[1
]}

Nadege, Brun ^{[2
]}

Chapron, David ^{[2
]}

Bourson, Patrice ^{[2
]}

Durand, Alain ^{[1
,3
]}

机构：

[1] CNRS, LRGP, UPR 3349, F-54001 Nancy, France

[2] Univ Lorraine, LMOPS, EA 4423, F-57070 Metz, France

[3] Univ Lorraine, LCPM, UMR 7568, F-54001 Nancy, France

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 49期

关键词：

FREE-RADICAL POLYMERIZATION; CHAIN DEFORMATION; ACRYLIC-ACID; ISOTACTIC POLYPROPYLENE; AQUEOUS-SOLUTION; REACTIONS ACOMP; RHEOKINETICS; POLYMERS; NMR; POLYACRYLAMIDE;

D O I：

10.1021/ie302054k

中图分类号：

TQ [化学工业];

学科分类号：

081705 [工业催化];

摘要：

The use of a laboratory-made rheo-Raman device for continuous in situ monitoring of free-radical polymerization of acrylic acid in aqueous solution is reported for the first time. Combining a mixer-type rheometer with a quartz outer cylinder to a Raman spectrometer, this original experimental device has allowed us to overcome three current challenges of polymerization reaction monitoring. First, monomer conversion, polymer formation, and viscosity of reaction medium were continuously monitored with well-defined conditions (composition, temperature, and flow), using Couette analogy. Second, direct correlation between macroscopic viscosity and medium composition was established (accounting for the continuous variation of molar mass distribution). Third, using a mixer-type rheometer provided scalable results, in terms of stirring conditions.

引用

页码：16151 / 16156

页数：6

共 36 条

[1]

Quantitative analysis of mixer-type rheometers using the Couette analogy [J].