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Grafting phosphonated thiol on hydroxy telechelic polybutadiene

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Summary

An hydroxytelechelic polybutadiene (PBHT) of 1200 molecular weight has been modified by the phosphonated thiol HS-(CH2)3-PO(OC2H5)2 (I). The thiol (I) was prepared in three steps: phosphonation of allyl bromide, addition of thioacetic acid and hydrolysis. The grafting rate of (I) on PBHT has been calculated by sulfur analysis and by 1H NMR. The results confirmed that the 1,2 double bonds are 10 times more reactive than the 1,4. The method led to new macromolecular polyols containing between 3 and 5 % in weight of phosphorous. These new long polyols should be very interesting in order to prepare fire retardant polyurethane networks.

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Authors and Affiliations

  1. Laboratoire de Chimie Macromoléculaire, UPRES A 5076, Ecole Nationale Supérieure de Chimie de Montpellier, F-34296 Montpellier Cedex 5, France, , , , , , FR

    Bernard Boutevin, Yves Hervaud & Gérard Moulédous

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  1. Bernard Boutevin
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  2. Yves Hervaud
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  3. Gérard Moulédous
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Received: 16 April 1998/Revised version: 13 May 1998/Accepted: 10 June 1998

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Boutevin, B., Hervaud, Y. & Moulédous, G. Grafting phosphonated thiol on hydroxy telechelic polybutadiene. Polymer Bulletin 41, 145–151 (1998). https://doi.org/10.1007/s002890050345

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  • DOI: https://doi.org/10.1007/s002890050345

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