Open Access
ARTICLE
Synthesis of poly(ω-pentadecalactone) using Lipase Immobilized onto a Renewable Carrier, Rice husk ash and their Characterization
CANSU ULKER TURAN1,*, YUKSEL GUVENILIR1
1
Istanbul Technical University, Department of Chemical Engineering, 34469, Istanbul, Turkey.
* Corresponding Author: e-mail:
Journal of Polymer Materials 2021, 38(3-4), 271-280. https://doi.org/10.32381/JPM.2021.38.3-4.8
Abstract
Rice husk ash is a side-product of rice production; thus, it is a cheap, abundant, and renewable
material, and utilized as an enzyme carrier to immobilize Candida antarctica lipase B. In this
study, Candida antarctica lipase B immobilized onto rice husk ashes was used to catalyze ring
opening polymerization of 16-membered lactone, ω-pentadecalactone. In order to determine
the best polymerization conditions for highest molar mass polymer, reactions were proceeded
at various temperatures and time periods. The best reaction conditions were obtained as 80°C
and 6 hours (M
n
= 34255 g mol
-1). Molecular structure of this polymer sample was confirmed via
proton nuclear magnetic resonance spectroscopy (
1
H-NMR) and Fourier transform infrared
spectroscopy (FTIR). Thermal properties were investigated by differential scanning calorimetry
(DSC) and thermal gravimetric analysis (TGA). Consequently, poly(ω-pentadecalactone) was
synthesized enzymatically with rapid polymerization tendency and improved thermal properties
which were quite close to low-density polyethylene. Successful polymerization results showed
that Candida antarctica lipase B immobilized onto rice husk ashes may be a good alternative to
commercial immobilized form, Novozyme 435, as a result of its comparable activity and low
cost.
Keywords
Cite This Article
APA Style
TURAN, C.U., GUVENILIR, Y. (2021). Synthesis of poly(ω-pentadecalactone) using lipase immobilized onto a renewable carrier, rice husk ash and their characterization. Journal of Polymer Materials, 38(3-4), 271-280. https://doi.org/10.32381/JPM.2021.38.3-4.8
Vancouver Style
TURAN CU, GUVENILIR Y. Synthesis of poly(ω-pentadecalactone) using lipase immobilized onto a renewable carrier, rice husk ash and their characterization. J Polym Materials . 2021;38(3-4):271-280 https://doi.org/10.32381/JPM.2021.38.3-4.8
IEEE Style
C.U. TURAN and Y. GUVENILIR, "Synthesis of poly(ω-pentadecalactone) using Lipase Immobilized onto a Renewable Carrier, Rice husk ash and their Characterization," J. Polym. Materials , vol. 38, no. 3-4, pp. 271-280. 2021. https://doi.org/10.32381/JPM.2021.38.3-4.8