TY - GEN
T1 - The effect of catalyst concentration in poly lactic acid synthesis from L-lactide using Candida rugosa lipase and DMA (dimethylacetamide) solvent through ring-opening polymerization (ROP)
AU - Santoso, Cynthia Laurent
AU - Curie, Catia Angli
AU - Ramadhan, Yusuf Arya
AU - Darmawan, Muhammad Arif
AU - Gozan, Misri
N1 - Funding Information:
The authors are grateful for the financial support of the present study provided by Penelitian Dasar (PD) for the budget year 2021. The funding was granted by the Ministry of Research and Technology/National Research and Innovation Agency (NKB-32/UN2.RST/HKP.05.00/2021).
Publisher Copyright:
© 2022 Author(s).
PY - 2022/12/5
Y1 - 2022/12/5
N2 - Poly Lactic Acid (PLA) is a polymer that can be used as an alternative to fossil-based plastics. PLA is the right solution because of its biodegradability, biocompatibility, mechanical strength, and processability. PLA synthesis process is more often carried out using the Ring-Opening Polymerization (ROP) pathway since it allows to produce a high molecular weight PLA. This study used Candida rugosa lipase as a green catalyst and DMA (Dimethylacetamide) as the solvent in the ROP of L-lactide. The observations were made by varying the catalyst ratio at 2, 5, and 10% w/w. The obtained PLA was characterized using H-NMR (H Nuclear Magnetic Resonance) to estimate the average number molecular weight (Mn) and monomer conversion, and GPC (Gel Permeation Chromatography) was also used to determine the number average and weight average molecular weight (Mn and Mw) of the PLA. It was found that the optimal catalyst ratio when the polymerization was performed at 80? for 3 days was 5%w/w.
AB - Poly Lactic Acid (PLA) is a polymer that can be used as an alternative to fossil-based plastics. PLA is the right solution because of its biodegradability, biocompatibility, mechanical strength, and processability. PLA synthesis process is more often carried out using the Ring-Opening Polymerization (ROP) pathway since it allows to produce a high molecular weight PLA. This study used Candida rugosa lipase as a green catalyst and DMA (Dimethylacetamide) as the solvent in the ROP of L-lactide. The observations were made by varying the catalyst ratio at 2, 5, and 10% w/w. The obtained PLA was characterized using H-NMR (H Nuclear Magnetic Resonance) to estimate the average number molecular weight (Mn) and monomer conversion, and GPC (Gel Permeation Chromatography) was also used to determine the number average and weight average molecular weight (Mn and Mw) of the PLA. It was found that the optimal catalyst ratio when the polymerization was performed at 80? for 3 days was 5%w/w.
UR - http://www.scopus.com/inward/record.url?scp=85144528302&partnerID=8YFLogxK
U2 - 10.1063/5.0110187
DO - 10.1063/5.0110187
M3 - Conference contribution
AN - SCOPUS:85144528302
T3 - AIP Conference Proceedings
BT - Proceedings of the 7th International Symposium on Applied Chemistry 2021
A2 - Al Muttaqii, Muhammad
A2 - Kurniawan, Kiki
A2 - Hanafi, Muhammad
A2 - Randy, Ahmad
PB - American Institute of Physics Inc.
T2 - 7th International Symposium on Applied Chemistry 2021, ISAC 2021
Y2 - 28 September 2021 through 30 September 2021
ER -