TY  - EJOU
AU  - Amarasekara, Ananda S. 
AU  - Hasan, Muhammad A. 
AU  - Larkin, Eve 

TI  - Renewable Polymers: Synthesis and Characterization of Poly(4-ketopimelic acid-glycerol)
T2  - Journal of Renewable Materials

PY  - 2017
VL  - 5
IS  - 1
SN  - 2164-6341

AB  - 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.
KW  - 4-Ketopimelic acid
KW  -  glycerol
KW  -  antimony(III) oxide
KW  -  polyketal
KW  -  polyester

DO  - 10.7569/JRM.2016.634129