A Spectroscopic Method for Hydroxyl Value Determination of Polyols

Siva Rama Krishna Chalasani, Sudhanwa Dewasthale, Elodie Hablot, Xiangke Shi, Daniel Graiver, Ramani Narayan

    Research output: Research - peer-reviewArticle

    • 3 Citations

    Abstract

    A relatively simple method is described for routine determination of hydroxyl values for a wide range of hydroxyl containing compounds including soybean oil polyols, polyols derived from soy meal, polyether polyols and ethylene glycol as well as their blends. This method is based on reacting the hydroxyl compound with hexamethyldisilazane (HMDS) and determining the FTIR peak area of the silylated product at 1,251 cm-1. The method is simple, accurate and reproducible. It is not limited to a specific family of polyol compounds. It does not require any special equipment, hazardous chemicals and can be carried out by non-technical staff as a rapid and convenient method for quantitative determination of hydroxyl values. An excellent linear correlation was obtained between this spectroscopic method and conventional titration methods for different polyols over a wide range of hydroxyl values. Furthermore, unlike the titration methods the current method is not affected by the presence of acid, base or small amounts of water in the test sample.

    LanguageEnglish (US)
    Pages1787-1793
    Number of pages7
    JournalJAOCS, Journal of the American Oil Chemists' Society
    Volume90
    Issue number12
    DOIs
    StatePublished - 2013

    Profile

    Hydroxyl Radical
    polyol
    Polyols
    Titration
    Hazardous Substances
    Soybean Oil
    Ethylene Glycol
    Polyethers
    Acids
    Water
    hexamethylsilazane
    Soybean oil
    Ethylene glycol

    Keywords

    • FTIR
    • Hexamethyldisilazane
    • Hydroxyl value
    • Polyols
    • Statistical analysis

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Organic Chemistry

    Cite this

    Chalasani, S. R. K., Dewasthale, S., Hablot, E., Shi, X., Graiver, D., & Narayan, R. (2013). A Spectroscopic Method for Hydroxyl Value Determination of Polyols. JAOCS, Journal of the American Oil Chemists' Society, 90(12), 1787-1793. DOI: 10.1007/s11746-013-2334-9

    A Spectroscopic Method for Hydroxyl Value Determination of Polyols. / Chalasani, Siva Rama Krishna; Dewasthale, Sudhanwa; Hablot, Elodie; Shi, Xiangke; Graiver, Daniel; Narayan, Ramani.

    In: JAOCS, Journal of the American Oil Chemists' Society, Vol. 90, No. 12, 2013, p. 1787-1793.

    Research output: Research - peer-reviewArticle

    Chalasani, SRK, Dewasthale, S, Hablot, E, Shi, X, Graiver, D & Narayan, R 2013, 'A Spectroscopic Method for Hydroxyl Value Determination of Polyols' JAOCS, Journal of the American Oil Chemists' Society, vol 90, no. 12, pp. 1787-1793. DOI: 10.1007/s11746-013-2334-9
    Chalasani SRK, Dewasthale S, Hablot E, Shi X, Graiver D, Narayan R. A Spectroscopic Method for Hydroxyl Value Determination of Polyols. JAOCS, Journal of the American Oil Chemists' Society. 2013;90(12):1787-1793. Available from, DOI: 10.1007/s11746-013-2334-9
    Chalasani, Siva Rama Krishna ; Dewasthale, Sudhanwa ; Hablot, Elodie ; Shi, Xiangke ; Graiver, Daniel ; Narayan, Ramani. / A Spectroscopic Method for Hydroxyl Value Determination of Polyols. In: JAOCS, Journal of the American Oil Chemists' Society. 2013 ; Vol. 90, No. 12. pp. 1787-1793
    @article{e9b577d75122470497ae9df2127386da,
    title = "A Spectroscopic Method for Hydroxyl Value Determination of Polyols",
    abstract = "A relatively simple method is described for routine determination of hydroxyl values for a wide range of hydroxyl containing compounds including soybean oil polyols, polyols derived from soy meal, polyether polyols and ethylene glycol as well as their blends. This method is based on reacting the hydroxyl compound with hexamethyldisilazane (HMDS) and determining the FTIR peak area of the silylated product at 1,251 cm-1. The method is simple, accurate and reproducible. It is not limited to a specific family of polyol compounds. It does not require any special equipment, hazardous chemicals and can be carried out by non-technical staff as a rapid and convenient method for quantitative determination of hydroxyl values. An excellent linear correlation was obtained between this spectroscopic method and conventional titration methods for different polyols over a wide range of hydroxyl values. Furthermore, unlike the titration methods the current method is not affected by the presence of acid, base or small amounts of water in the test sample.",
    keywords = "FTIR, Hexamethyldisilazane, Hydroxyl value, Polyols, Statistical analysis",
    author = "Chalasani, {Siva Rama Krishna} and Sudhanwa Dewasthale and Elodie Hablot and Xiangke Shi and Daniel Graiver and Ramani Narayan",
    year = "2013",
    doi = "10.1007/s11746-013-2334-9",
    volume = "90",
    pages = "1787--1793",
    journal = "Oil & Soap",
    issn = "0003-021X",
    publisher = "Springer Verlag",
    number = "12",

    }

    TY - JOUR

    T1 - A Spectroscopic Method for Hydroxyl Value Determination of Polyols

    AU - Chalasani,Siva Rama Krishna

    AU - Dewasthale,Sudhanwa

    AU - Hablot,Elodie

    AU - Shi,Xiangke

    AU - Graiver,Daniel

    AU - Narayan,Ramani

    PY - 2013

    Y1 - 2013

    N2 - A relatively simple method is described for routine determination of hydroxyl values for a wide range of hydroxyl containing compounds including soybean oil polyols, polyols derived from soy meal, polyether polyols and ethylene glycol as well as their blends. This method is based on reacting the hydroxyl compound with hexamethyldisilazane (HMDS) and determining the FTIR peak area of the silylated product at 1,251 cm-1. The method is simple, accurate and reproducible. It is not limited to a specific family of polyol compounds. It does not require any special equipment, hazardous chemicals and can be carried out by non-technical staff as a rapid and convenient method for quantitative determination of hydroxyl values. An excellent linear correlation was obtained between this spectroscopic method and conventional titration methods for different polyols over a wide range of hydroxyl values. Furthermore, unlike the titration methods the current method is not affected by the presence of acid, base or small amounts of water in the test sample.

    AB - A relatively simple method is described for routine determination of hydroxyl values for a wide range of hydroxyl containing compounds including soybean oil polyols, polyols derived from soy meal, polyether polyols and ethylene glycol as well as their blends. This method is based on reacting the hydroxyl compound with hexamethyldisilazane (HMDS) and determining the FTIR peak area of the silylated product at 1,251 cm-1. The method is simple, accurate and reproducible. It is not limited to a specific family of polyol compounds. It does not require any special equipment, hazardous chemicals and can be carried out by non-technical staff as a rapid and convenient method for quantitative determination of hydroxyl values. An excellent linear correlation was obtained between this spectroscopic method and conventional titration methods for different polyols over a wide range of hydroxyl values. Furthermore, unlike the titration methods the current method is not affected by the presence of acid, base or small amounts of water in the test sample.

    KW - FTIR

    KW - Hexamethyldisilazane

    KW - Hydroxyl value

    KW - Polyols

    KW - Statistical analysis

    UR - http://www.scopus.com/inward/record.url?scp=84892372886&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84892372886&partnerID=8YFLogxK

    U2 - 10.1007/s11746-013-2334-9

    DO - 10.1007/s11746-013-2334-9

    M3 - Article

    VL - 90

    SP - 1787

    EP - 1793

    JO - Oil & Soap

    T2 - Oil & Soap

    JF - Oil & Soap

    SN - 0003-021X

    IS - 12

    ER -