Inline monitoring of emulsion polymerization
نویسندگان
چکیده
منابع مشابه
Simultaneous Monitoring of Polymer and Particle Characteristics during Emulsion Polymerization
Emulsion polymerization reactions constitute complex, nonequilibrium systems in which there is strong interaction between polymers, monomers, and the colloidal structures that mediate the reactions. A novel and general method was sought to monitor emulsion polymerization reactions. Instrumentation and methods were hence developed here to achieve, for the first time, simultaneous monitoring of t...
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Particles of linear polyethylene (M(n) = (2-3) x 10(3) g x mol(-)(1); M(w)/M(n) = 2-4) obtained by catalytic emulsion polymerization of ethylene possess a nonspherical, lentil-like shape with an average aspect ratio of ca. 10 and diameters from 30 to >300 nm, as determined by TEM and AFM. The particle structure results from a stacking of the lamellae along the one shorter axis of the lentils (i...
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Introduction Analytical scientists work closely with research scientists to qualify and support process development. This manuscript demonstrates the importance of coordinating process development R&D with analytical method development from batch through large-scale manufacturing. The initial goal was to demonstrate the capability of Raman spectroscopy for tracking unreacted monomers and comono...
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This report deals with the chemically and the radiation-initiated emulsion polymerization of vinyl acetate. In experiments with potassium persulphate as initiator and sodium lauryl sulphate (SLS) as emulsifier the rate of polymerization is approximately proportional to the square root of initiator concentration and to the 0.25 power of the number of particles. The number of particles is proport...
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The effect of the pristine sodium montmorillonite (Na-MMT) on the styrene emulsion polymerizations with different concentrations of SDS ([SDS]) was investigated. At constant [SDS], the polymerization rate is faster for the run with 1 wt.% Na-MMT compared to the counterpart without Na-MMT. Micelle nucleation predominates in the polymerizations with [SDS] = 13 mM. On the other hand, the contribut...
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ژورنال
عنوان ژورنال: Chemie Ingenieur Technik
سال: 2020
ISSN: 0009-286X,1522-2640
DOI: 10.1002/cite.202055476