Grafting phosphonated thiol on hydroxy telechelic polybutadiene

被引:25
作者
Boutevin, B [1 ]
Hervaud, Y [1 ]
Mouledous, G [1 ]
机构
[1] Ecole Natl Super Chim Montpellier, Lab Chim Macromol, UPRES A5076, F-34296 Montpellier 5, France
关键词
Compendex;
D O I
10.1007/s002890050345
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 H-1 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.
引用
收藏
页码:145 / 151
页数:7
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