TY - JOUR
T1 - Purification of Monomers Leads to High-Quality Lignin Macromonomers
AU - Syed Azhar, S. A.R.
AU - Ahn, Dong June
N1 - Funding Information:
This work was supported by the Majlis Amanah Rakyat (MARA) and National Research Foundation of Korea (NRF, 2017R1A2B3006770, 2017M3D1A1039421), KU-KIST Graduate School of Converging Science and Technology and a Korea University Grant.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/8/27
Y1 - 2019/8/27
N2 - Purification is critical in any chemical process. The removal of impurities will produce the product in better quality and high standard. In this study, a new type of monomer was prepared by condensation polymerization of alkali lignin (AL) and methacryloyl chloride (MAC). The effect of AL/MAC ratio and the purification of MAC were investigated. The physical and chemical properties of the product obtained which is lignin methacrylate (LMA) were characterized by Fourier Transformed Infrared spectroscopy (FT-IR) and Nuclear Magnetic Resonance (1H-NMR). The result reveals that the purification was successfully removed the hydroxyl groups from the stabilizer in MAC and it is found that all the hydroxyl groups are coming from AL. The single interaction between and MAC has successfully enhanced the product obtain which does show no hydroxyl groups. The 1H-NMR data also showed that the purification of MAC influences the outcome. The noise and impurities were eliminated after the purification of MAC, and more pure products were obtained. This new monomer (LMA) synthesis that can be further utilized for various applications.
AB - Purification is critical in any chemical process. The removal of impurities will produce the product in better quality and high standard. In this study, a new type of monomer was prepared by condensation polymerization of alkali lignin (AL) and methacryloyl chloride (MAC). The effect of AL/MAC ratio and the purification of MAC were investigated. The physical and chemical properties of the product obtained which is lignin methacrylate (LMA) were characterized by Fourier Transformed Infrared spectroscopy (FT-IR) and Nuclear Magnetic Resonance (1H-NMR). The result reveals that the purification was successfully removed the hydroxyl groups from the stabilizer in MAC and it is found that all the hydroxyl groups are coming from AL. The single interaction between and MAC has successfully enhanced the product obtain which does show no hydroxyl groups. The 1H-NMR data also showed that the purification of MAC influences the outcome. The noise and impurities were eliminated after the purification of MAC, and more pure products were obtained. This new monomer (LMA) synthesis that can be further utilized for various applications.
UR - http://www.scopus.com/inward/record.url?scp=85073774083&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/548/1/012021
DO - 10.1088/1757-899X/548/1/012021
M3 - Conference article
AN - SCOPUS:85073774083
SN - 1757-8981
VL - 548
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012021
T2 - International Rubber Conference 2018, IRC 2018
Y2 - 4 September 2018 through 6 September 2018
ER -