Synthesis of multifunctional acrylate monomers (MFAMs) and their applications | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 7, Volume 23, Issue 2-A, December 2012, Page 151-162 PDF (1.26 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2012.7208 | ||||
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| Authors | ||||
| FAHIM NASSAR* ; H. S. NASSAR; F. ABDEL HAI; G. I. AHMED | ||||
| Department of Applied Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt. | ||||
| Abstract | ||||
| Novel multifunctional acrylate monomers (MFAMs) were synthesized by reaction of acryloyl chloride with 3,4,5-trihydroxybenzoic (Gallic) acid and diethanolamine in the presence of triethylamine as catalyst. The prepared multifunctional acrylate monomers were used as cross-linkers for the synthesis of polyacrylic acid by precipitation polymerization using 2,2'-azobisisobutyronitrile (AIBN) as free radical initiator. Differential scanning calorimetry studies showed that the glass transition temperature behavior is significantly affected by the type and amount of MFAM employed. Viscosity measurements showed that the thickening effect depend upon the cross-linker type and concentration. | ||||
| Keywords | ||||
| Multifunctional acrylate monomers; Gallic acid; diethanolamine; precipitation polymerization; Azobisisobutyro-nitrile; and Differential scanning calorimetry | ||||
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