Synthesis and characterization of starch/fiber-based bioplastic composites modified by citric acid-epoxidized palm oil oligomer with reactive blending

2021 ◽  
Vol 170 ◽  
pp. 113797
Author(s):  
Jianlei Yang ◽  
Yern Chee Ching ◽  
Cheng Hock Chuah ◽  
Dai Hai Nguyen ◽  
Nai-Shang Liou
Keyword(s):  
Citric Acid ◽  
Palm Oil ◽  
Synthesis And Characterization ◽  
Reactive Blending ◽  
Epoxidized Palm Oil

Synthesis and Characterization of Palm Oil Based Polyol

2013 ◽  
Vol 812 ◽  
pp. 275-280
Author(s):  
Yahaya Siti Munira ◽  
Ahmad Faiza Mohd ◽  
Mohamed Rahmah
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Fourier Transform ◽  
Palm Oil ◽  
Ring Opening ◽  
Hydroxyl Group ◽  
Synthesis And Characterization ◽  
Epoxidized Palm Oil ◽  
Ring Opening Reaction ◽  
Epoxy Groups

In this study, palm oil-based polyols were prepared and characterized. In order to prepare the polyol, Epoxidized palm oil (EPO) was reacted with glycerol and undergoes ring opening reaction. The synthesized oil was characterized by oxygen oxirane content titration (OOC), hydroxyl value test (HV), fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR). Based on the FTIR spectrum of polyols, the disappearance of epoxy groups at 825cm-1, 843cm-1 and the emergence of hydroxyl group at 3394cm-1 are obvious indicating that hydroxyl group of the polyols formed. In NMR, the presence of new signal at δ 3.46ppm (-CH-OH) showed the attachment of hydroxyl group onto the epoxidized palm oil.

Synthesis and characterization of functional l-lactic acid/citric acid oligomer

2004 ◽  
Vol 40 (8) ◽  
pp. 1895-1901 ◽  
Author(s):  
Fanglian Yao ◽  
Yun Bai ◽  
Wei Chen ◽  
Xiaoyan An ◽  
Kangde Yao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Citric Acid ◽  
Synthesis And Characterization

Synthesis and characterization of lactic acid – citric acid copolymers

Polimery ◽  
2017 ◽  
Vol 62 (05) ◽  
pp. 335-339
Author(s):  
Zbigniew Florjanczyk ◽  
Agnieszka Chudzik ◽  
Anita Frydrych ◽  
Katarzyna Rucinska
Keyword(s):  
Lactic Acid ◽  
Citric Acid ◽  
Synthesis And Characterization
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