In the present paper, many unsaturated polyesters has been synthesized using maleic anhydride, phthalic anhydride and succinic for esterification with new monomer [E)-1-(4-hydroxyphenyl)-3-(3-methoxy-4-hydroxyphenyl) prop-2-en-1-one]. These were polymerized by condensation reaction . Their chemical structures characterized FTIR, 13C-NMR 1H NMR spectroscopy. Thermal properties have analysed Diff...

A novel adsorbent based on peanut shells modified with glutaraldehyde and succinic anhydride was prepared. Factors affecting the adsorption capacity, such as the pH, temperature, adsorption time, initial cytochrome c (cyt c) concentration and NaCl ionic strength, were extensively investigated. The results showed that the maximum adsorption capacity of the modified peanut shells (MPSs) was 432.6...

Homogeneous modification of cellulose with succinic anhydride was performed using tetrabutylammonium acetate (TBAA)/dimethyl sulfoxide (DMSO) mixed solvent. The molar ratio of succinic anhydride (SA) to free hydroxyl groups in the anhydroglucose units (AGU), TBAA dosage, reaction temperature, and reaction time were investigated. The highest degree of substitution (DS) value of 1.191 was obtaine...

Alkenyl succinic anhydride (ASA) is a sizing agent. The wettability of paperboard decreases when ASA applied. efficacy in board can be reversed under certain conditions, making the paper more hydrophilic and lesser quality/value. Although it broadly known that size reversion due to autooxidation presence oxygen air, environmental parameters initiate or catalyze this reaction are not well unders...