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    Raman spectroscopic studies of the cure of dicyclopentadiene (DCPD)

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    Publication date
    2009-06-30T07:20:27Z
    Author
    Brown, Elaine C.
    Barnes, S.E.
    Coates, Philip D.
    Corrigan, N.
    Edwards, Howell G.M.
    Harkin-Jones, E.
    Keyword
    Raman
    ; Cure monitoring
    ; Polydicyclopentadiene
    ; Ultrasound
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    The cure of polydicyclopentadiene conducted by ring-opening metathesis polymerisation in the presence of a Grubbs catalyst was studied using non-invasive Raman spectroscopy. The spectra of the monomer precursor and polymerised product were fully characterised and all stages of polymerisation monitored. Because of the monomer's high reactivity, the cure process is adaptable to reaction injection moulding and reactive rotational moulding. The viscosity of the dicyclopentadiene undergoes a rapid change at the beginning of the polymerisation process and it is critical that the induction time of the viscosity increase is determined and controlled for successful manufacturing. The results from this work show non-invasive Raman spectroscopic monitoring to be an effective method for monitoring the degree of cure, paving the way for possible implementation of the technique as a method of real-time analysis for control and optimisation during reactive processing. Agreement is shown between Raman measurements and ultrasonic time of flight data acquired during the initial induction period of the curing process.
    URI
    http://hdl.handle.net/10454/2880
    Version
    No full-text available in the repository
    Citation
    Brown EC, Barnes SE, Coates PD et al. (2005) . Raman spectroscopic studies of the cure of dicyclopentadiene (DCPD) Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 61(13-14): 2946-2952.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.saa.2004.11.005
    Type
    Article
    Collections
    Engineering and Informatics Publications

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