Application of Infrared-Attenuated Total Reflection Technique Combined with Sedimentation Phenomena to Particle Size Measurement: Fundamental Experiments on Applicability of the Method

Sarno, Brian John; Yoshidome, Takashi; Ikuta, Y.; Rabor, Janice B.; Tsurumura, Yuki; Montecillo, Menchie E.; Higo, Morihide

doi:10.1007/s10812-013-9792-6

Cited by 1 publication

(1 citation statement)

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“…Similarly, in situ monitoring of the particle size distribution is not currently feasible at present. For particle size measurements, a few online sensors are available, such as turbidity meters, photon density wave (PDW) probes, focused-beam reflectance measurement (FBRM) probes, ultrasound sensors, − fiber-optic quasielastic light scattering (FOQLS), , and attenuated-total-reflection infrared (ATR-IR) spectroscopy. − For a critical review of different techniques for monitoring latex particles, the reader is directed elsewhere . None of these techniques allow in situ measurements in a multiphase reaction system.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of the Simultaneous Determination of Monomer Concentrations and Particle Size in Emulsion Polymerization Using in Situ Raman Spectroscopy

Houben

Nurumbetov

Haddleton

et al. 2015

Ind. Eng. Chem. Res.

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An immersion Raman probe was used in emulsion copolymerization reactions to measure monomer concentrations and particle sizes. Quantitative determination of monomer concentrations is feasible in two-monomer copolymerizations, but only the overall conversion could be measured by Raman spectroscopy in a four-monomer copolymerization. The feasibility of measuring monomer conversion and particle size was established using partial least-squares (PLS) calibration models. A simplified theoretical framework for the measurement of particle sizes based on photon scattering is presented, based on the elastic-sphere-vibration and surface-tension models.

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