01123nam a2200145Ia 4500 220216s9999 xx 000 0 und d Soutif Jean-Claude Second step modifications of epoxidised polymers. 5. Systems allowing release of naphtyhlacetic acid from epoxidised polyisoprene and liquid natural rubber Journal of Natural Rubber Research 1993 243-252 A polymeric support containing free or linked naphthylacetic acid (NAA) a stimulator for the production of latex by Hevea can be obtained from epoxidised synthetic 1,4-polyisoprene or liquid natural rubber (LNR). Crosslinking of emulsified epoxidized polymers containing free or bound NAA by diacids or anhydrides catalysed by the tetrabutylammonium salt of the corresponding diacids leads to polymeric particles containing free NAA. Hydrolysis of NAA derivatives of epoxidised 1,4-polyisoprene and epoxidised LNR has been performed in basic media. This particular formulation leads to a high initial rate of liberation. Brosse Jean-Claude Klimituksa Pairote JS 68515 68515 0 0 0 8 MAIN MAIN 80 2021-12-17 Volume 8, Issue 4 0 2021-12-17 00:00:00 2022-02-16 JS