CHANGING THE PROPERTIES OF BIOBASED POLYMERS BY POLYOLS AND MONOSACCHARIDES Fuad Taghiyev, Banovsha Mammadova, Rasul Balamedov ................................... 370 PREPARATION OF CA/AL-, ZN/AL-, AND ZN/AL/CA-LAYERED DOUBLE HYDROXIDE NANOPARTICLES AND THEIR APPLICATION IN THE CONTAMINATED WATER TREATMENT Ayshan Zulfiyeva Novruz, Taliya Mammadhasanzada Elmar, Ali Aliyev Tahir ....... 372 GO-NUN SEMENTƏ ƏLAVƏ KIMI İSTİFADƏSİ Tuncay Mür ş üdov, Rauf Ə liyev, Vüqar X ə lilov. ....................................................... 374 APPLICATION OF CHITOSAN AS A CORROSION INHIBITOR Mehdi Mehdizade, Elsun Azizov, Murad Malikzade ................................................ 376 POLYURETHANES CHEMICAL RECYCLING Akbar Gurbanov, Ariza Puchakhova, Yagub Hajiyev .............................................. 377 RECYCLE OF REUSED KITCHEN OIL WITH CHEMICAL TREATMENT Gunay Mirzayeva, Aykhan Aliyev ............................................................................ 380 THE SYNTHESIS OF Fe-AC NANOCOMPOSITE FOR ADSORPTION OF VANADIUM FROM ALUMINATE SOLUTION Arzu Osmanova ...................................................................................................... 382 METAL İONLARININ MAQNİT XASSƏLİ SORBENTLƏRLƏ BƏRK Günel M ə mm ə dova ................................................................................................. 384 FLEXIBLE POLYURETHANE FOAM COMPOSITES Afag Hashimova, Hasan Babayev .......................................................................... 386