@Article{JRM.2016.634129,
AUTHOR = {Ananda S. Amarasekara, Muhammad A. Hasan, Eve Larkin},
TITLE = {Renewable Polymers: Synthesis and Characterization of Poly(4-ketopimelic acid-glycerol)},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {5},
YEAR = {2017},
NUMBER = {1},
PAGES = {62--66},
URL = {http://www.techscience.com/jrm/v5n1/28771},
ISSN = {2164-6341},
ABSTRACT = {Condensation polymerization of renewable resources-based monomers, 4-ketopimelic acid and glycerol, were studied using two different catalysts; p-toluenesulfonic acid and Sb2O3. The highest polymer yield of 96% was achieved by using a 3:4 mole ratio mixture of 4-ketopimelic acid and glycerol, with Sb2O3 (0.5 mol% relative to 4-ketopimelic acid) as catalyst and heating at 23–210 °C, under N2 for 1 h; then 210 °C, vacuum, 12 h. The poly(4-ketopimelic acid-glycerol) formed is insoluble in all common organic solvents and is shown to contain a branched polymeric structure with ketal and ester links by using FT-IR, 1H and 13C NMR spectroscopy.},
DOI = {10.7569/JRM.2016.634129}
}