Photoinitiated bulk polymerization of liquid crystalline thiolene monomers

J.T.A. Wilderbeek, J.G.P. Goossens, C.W.M. Bastiaansen, D.J. Broer

    Research output: Contribution to journalArticleAcademicpeer-review

    20 Citations (Scopus)
    1 Downloads (Pure)

    Abstract

    The photoinitiated bulk polymn. of liq. cryst. thiolene monomers (having a mercapto group at one end and an olefinic bond at the other) based on a Ph benzoate core was investigated and the structure of the corresponding polymers analyzed. We show that polymn. occurs substantially in bulk, and can be initiated on demand by UV irradn. The liq. cryst. thiolene polymers exhibit a nematic mesophase, and the mol. wt., mol. wt. distribution and overall conversion are characteristic for polymers obtained by a step-growth polymn. Using NMR spectroscopy, we show that anti-Markovnikov structures are predominantly formed, with a small fraction of the structures displaying different configurations that can be attributed to thiol olefin addn.-cooxidn. processes or to homopolymn. of the olefinic moiety. The conversions of the thiol and vinyl groups were monitored using time-resolved Raman spectroscopy and dissimilar partial reaction rates were obsd. [on SciFinder (R)]
    Original languageEnglish
    Pages (from-to)8962-8968
    Number of pages7
    JournalMacromolecules
    Volume35
    Issue number24
    DOIs
    Publication statusPublished - 2002

    Fingerprint

    Dive into the research topics of 'Photoinitiated bulk polymerization of liquid crystalline thiolene monomers'. Together they form a unique fingerprint.

    Cite this