Alaabta

Shan nooc oo alwaax ah ayaa lagu dhejiyay acetic anhydride (AA) ee gulukooska pentaacetate (GPA) ee 120 ° C ee 8h, iyo saameynta GPA ee xasiloonida cabbirka alwaax acetylated ayaa la baaray.Qaar ka mid ah GPA-da ayaa lagu soo bandhigay gidaarka unugyada alwaax inta lagu jiro acetylation.GPA-da ku haray lumen-ka unugga ayaa si wax ku ool ah u galay gidaarka unugga ka dib kuleyl ka badan 140°C muddo 10min ah.Saamaynta isku-darka ah ee GPA waxay keentay 10%-30% korodhka waxtarka ka-hortagga bararka alwaax-gaab leh oo leh 20% GPA/AA xalalka AA.Hydrophobic GPA kuma daalin xaalado qoyan oo aad u sarreeya waxayna ku hartay gidaarka unugga ka dib markii ay ku karkaraan biyaha.