Non‐destructive method for the quantification of the average particle diameter of latex as water‐based emulsions by near‐infrared Fourier transform Raman spectroscopy

Ito, Kazuhiro; Kato, Tadaya; Ona, Toshihiro

doi:10.1002/jrs.860

Cited by 25 publications

(14 citation statements)

References 17 publications

(10 reference statements)

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“…Given that Raman scattering depends on the number of molecules, then in a mixture with two components illuminated and viewed, the concentration proportion is the mole fraction. 46 Therefore, …”

Section: Raman Response From Mixed and Dispersed Cntsmentioning

confidence: 99%

A correlated method for quantifying mixed and dispersed carbon nanotubes: analysis of the Raman band intensities and evidence of wavenumber shift

Athalin¹,

Lefrant²

2005

J Raman Spectroscopy

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We present an experimental investigation of a correlated quantitative analytical method based on advanced Raman spectroscopy. This method was developed for the intensity weight distribution analysis of mixed and dispersed carbon nanotube (CNT) mixtures. For Raman spectroscopy, mixtures of single-walled CNTs (SWNTs) and multi-walled CNTs (MWNTs) were prepared and dispersed on a coverslip. Mixtures were made in the range from 1 to 100 mg (wt%) of SWNTs in 100 to 1 mg (wt%) of MWNTs. The ratios of the relative intensities of the Raman bands corresponding to pure SWNTs and pure MWNTs were used for the construction of calibration curves used for quantitative analysis. The relative intensity of the deconvoluted spectral bands shows a characteristic feature at 1350 and 1592 cm −1 which was found to be proportional to the relative amounts of SWNTs and MWNTs in the mixtures. A correlation between the atomic force microscopy images and the tangential mode Raman intensity ratio was used without the need for other analytical techniques. With this feature, it is possible to quantify the different components in the mixed, dispersed or unknown bulk of the CNTs investigated.

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Section: Raman Response From Mixed and Dispersed Cntsmentioning

confidence: 99%

A correlated method for quantifying mixed and dispersed carbon nanotubes: analysis of the Raman band intensities and evidence of wavenumber shift

Athalin¹,

Lefrant²

2005

J Raman Spectroscopy

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“…Secondly, slurry samples can be measured directly since water has a very weak Raman spectrum. This advantage of Raman spectroscopy has been successfully employed in the investigations of emulsion and suspension formulations [29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Characterizing the conversion kinetics of carbamazepine polymorphs to the dihydrate in aqueous suspension using Raman spectroscopy

Tian

Zeitler

Strachan

et al. 2006

Journal of Pharmaceutical and Biomedical Analysis

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“…Likewise, Raman has been used to follow monomer concentrations,1, 54–56 and it has been shown that Raman spectra are affected by particle size in emulsion polymerization 57, 58. Many of the foregoing referenced works, and others, combine IR and Raman measurements 59, 60…”

Section: Measurement Of Monomer and Polymer Characteristics During Pomentioning

confidence: 99%

Fundamental Measurements in Online Polymerization Reaction Monitoring and Control with a Focus on ACOMP

Alb

Reed

2010

Macro Reaction Engineering

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Fundamental measurements in online polymerization reaction monitoring and control seek to avoid empirical and inferential models in data interpretation. One such approach making use of multiple detectors is automatic continuous online monitoring of polymerization reactions (ACOMP), wherein a continuous reactor stream is automatically, continuously diluted and conditioned to where measurements reflect intrinsic particle properties and not the interactions that can dominate measurements in concentrated media. Examples where dilute regime measurements are needed include static and dynamic light scattering, and reduced viscosity. This review focuses on ACOMP to illustrate a number of reaction contexts where fundamental measurements are used to gain a comprehensive picture of reaction characteristics.

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Non‐destructive method for the quantification of the average particle diameter of latex as water‐based emulsions by near‐infrared Fourier transform Raman spectroscopy

Cited by 25 publications

References 17 publications

A correlated method for quantifying mixed and dispersed carbon nanotubes: analysis of the Raman band intensities and evidence of wavenumber shift

A correlated method for quantifying mixed and dispersed carbon nanotubes: analysis of the Raman band intensities and evidence of wavenumber shift

Characterizing the conversion kinetics of carbamazepine polymorphs to the dihydrate in aqueous suspension using Raman spectroscopy

Fundamental Measurements in Online Polymerization Reaction Monitoring and Control with a Focus on ACOMP

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