Monitoring emulsion polymerization reactors: Calorimetry versus Raman spectroscopy

Oihana Elizalde; Maider Azpeitia; Marion M. Reis; José M. Asua; Jose R. Leiza

doi:10.1021/ie050451y

Monitoring emulsion polymerization reactors: Calorimetry versus Raman spectroscopy

Oihana Elizalde
, Maider Azpeitia
, Marion M. Reis
, José M. Asua
, Jose R. Leiza^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

Reaction calorimetry and Raman spectroscopy were simultaneously implemented to monitor high solids content (∼50 wt %) semibatch emulsion polymerization reactions for two comonomer systems: vinyl acetate/butyl acrylate, VAc/BA, and butyl acrylate/methyl methacrylate, BA/MMA. Overall and instantaneous conversions and free concentration of monomer were measured by means of each technique. It was found that both techniques provided comparable results for the overall conversion, no matter whether the reactions were carried out under starved (BA/MMA) or nonstarved conditions (VAc/BA). However, instantaneous conversion and free monomer concentrations were better estimated by Raman spectroscopy when the polymerization was carried out under starved conditions. Under nonstarved conditions (higher free monomer concentration and lower instantaneous conversions), Raman spectroscopy also provided slightly better estimates.

Original language	English
Pages (from-to)	7200-7207
Number of pages	8
Journal	Industrial & Engineering Chemistry Research
Volume	44
Issue number	18
DOIs	https://doi.org/10.1021/ie050451y
Publication status	Published - 31 Aug 2005
Externally published	Yes

Access to Document

10.1021/ie050451y

Cite this

@article{97592c27a34241b5a25d043b908a421b,

title = "Monitoring emulsion polymerization reactors: Calorimetry versus Raman spectroscopy",

abstract = "Reaction calorimetry and Raman spectroscopy were simultaneously implemented to monitor high solids content (∼50 wt \%) semibatch emulsion polymerization reactions for two comonomer systems: vinyl acetate/butyl acrylate, VAc/BA, and butyl acrylate/methyl methacrylate, BA/MMA. Overall and instantaneous conversions and free concentration of monomer were measured by means of each technique. It was found that both techniques provided comparable results for the overall conversion, no matter whether the reactions were carried out under starved (BA/MMA) or nonstarved conditions (VAc/BA). However, instantaneous conversion and free monomer concentrations were better estimated by Raman spectroscopy when the polymerization was carried out under starved conditions. Under nonstarved conditions (higher free monomer concentration and lower instantaneous conversions), Raman spectroscopy also provided slightly better estimates.",

author = "Oihana Elizalde and Maider Azpeitia and Reis, \{Marion M.\} and Asua, \{Jos{\'e} M.\} and Leiza, \{Jose R.\}",

year = "2005",

month = aug,

day = "31",

doi = "10.1021/ie050451y",

language = "English",

volume = "44",

pages = "7200--7207",

journal = "Industrial \& Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "18",

}

TY - JOUR

T1 - Monitoring emulsion polymerization reactors

T2 - Calorimetry versus Raman spectroscopy

AU - Elizalde, Oihana

AU - Azpeitia, Maider

AU - Reis, Marion M.

AU - Asua, José M.

AU - Leiza, Jose R.

PY - 2005/8/31

Y1 - 2005/8/31

N2 - Reaction calorimetry and Raman spectroscopy were simultaneously implemented to monitor high solids content (∼50 wt %) semibatch emulsion polymerization reactions for two comonomer systems: vinyl acetate/butyl acrylate, VAc/BA, and butyl acrylate/methyl methacrylate, BA/MMA. Overall and instantaneous conversions and free concentration of monomer were measured by means of each technique. It was found that both techniques provided comparable results for the overall conversion, no matter whether the reactions were carried out under starved (BA/MMA) or nonstarved conditions (VAc/BA). However, instantaneous conversion and free monomer concentrations were better estimated by Raman spectroscopy when the polymerization was carried out under starved conditions. Under nonstarved conditions (higher free monomer concentration and lower instantaneous conversions), Raman spectroscopy also provided slightly better estimates.

AB - Reaction calorimetry and Raman spectroscopy were simultaneously implemented to monitor high solids content (∼50 wt %) semibatch emulsion polymerization reactions for two comonomer systems: vinyl acetate/butyl acrylate, VAc/BA, and butyl acrylate/methyl methacrylate, BA/MMA. Overall and instantaneous conversions and free concentration of monomer were measured by means of each technique. It was found that both techniques provided comparable results for the overall conversion, no matter whether the reactions were carried out under starved (BA/MMA) or nonstarved conditions (VAc/BA). However, instantaneous conversion and free monomer concentrations were better estimated by Raman spectroscopy when the polymerization was carried out under starved conditions. Under nonstarved conditions (higher free monomer concentration and lower instantaneous conversions), Raman spectroscopy also provided slightly better estimates.

UR - https://www.scopus.com/pages/publications/24944489302

U2 - 10.1021/ie050451y

DO - 10.1021/ie050451y

M3 - Article

AN - SCOPUS:24944489302

SN - 0888-5885

VL - 44

SP - 7200

EP - 7207

JO - Industrial & Engineering Chemistry Research

JF - Industrial & Engineering Chemistry Research

IS - 18

ER -

Monitoring emulsion polymerization reactors: Calorimetry versus Raman spectroscopy

Abstract

Access to Document

Other files and links

Fingerprint

Cite this