scholarly journals Enzymatic synthesis of 2,5-furandicarboxylic acid-based semi-aromatic polyamides: enzymatic polymerization kinetics, effect of diamine chain length and thermal properties

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67941-67953 ◽  
Author(s):  
Yi Jiang ◽  
Dina Maniar ◽  
Albert J. J. Woortman ◽  
Katja Loos

Sustainable FDCA-based semi-aromatic polyamides are produced via enzymatic polymerization. The enzymatic polymerization kinetics, effect of diamine chain length, and thermal properties of the resulting polyamides are investigated.

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87013-87020 ◽  
Author(s):  
Kaiju Luo ◽  
Yan Wang ◽  
Junrong Yu ◽  
Jing Zhu ◽  
Zuming Hu

Aromatic furanic polyamides with relatively high molecular weight were synthesized, and good thermal stability and mechanical properties were demonstrated.


1980 ◽  
Vol 18 (10) ◽  
pp. 2949-2958 ◽  
Author(s):  
Ajit K. Chaudhuri ◽  
B. Y. Min ◽  
Eli M. Pearce

2014 ◽  
Vol 47 (10) ◽  
pp. 3306-3316 ◽  
Author(s):  
Carolus H. R. M. Wilsens ◽  
Johan M. G. A. Verhoeven ◽  
Bart A. J. Noordover ◽  
Michael Ryan Hansen ◽  
Dietmar Auhl ◽  
...  

2019 ◽  
Vol 7 (22) ◽  
pp. 18505-18516 ◽  
Author(s):  
Shanmugam Thiyagarajan ◽  
Michael A. Meijlink ◽  
Aurélie Bourdet ◽  
Willem Vogelzang ◽  
Rutger J. I. Knoop ◽  
...  

2015 ◽  
Vol 87 (1) ◽  
pp. 59-69 ◽  
Author(s):  
Álvaro Cruz-Izquierdo ◽  
Lambertus A.M. van den Broek ◽  
Juan L. Serra ◽  
María J. Llama ◽  
Carmen G. Boeriu

Abstract2,5-Furandicarboxylic acid is a platform chemical for the production of biobased polymers and materials. This study reports the synthesis of furan oligoesters via polytransesterification of dimethyl furan-2,5-dicarboxylate and linear α, ω-aliphatic diols with chain length ranging from C2 to C12, using immobilized lipase B from Candida antarctica (Novozym 435) in dry organic solvents. Dimethyl furan-2,5-dicarboxylic acid (A) and 1,4-butanediol (B) were used as model substrates under different conditions producing a mixture of cyclic (CEOs) and linear (LEOs) ester oligomers up to decamers and dodecamers, respectively, with high yield. The size of the oligomers and distribution of the products is controlled by the initial concentration of substrates and temperature. While the shortest CEOs are the main cyclic compounds at 20 mM, the longest CEOs are formed at 175 mM. The chain length of the aliphatic diol co-monomers strongly influences the yield and the type of oligoesters formed. High substrate conversion of 90–95 % was obtained for C4–C12 diols, while in the case of ethylene glycol and 1,3-propanediol the conversion was moderate (i.e., 75 %). The product of the reaction between dimethyl furan-2,5-dicarboxylate and ethylene glycol (C2) and 1,3-propanediol (C3), respectively, consisted only of linear oligoesters. Longer oligoesters were obtained for alkyl chains higher than C4. The chain length and the abundance of oligoesters increases in the order: C2<C12<C10<C3<C8<C4 <C6. No substrate or product inhibition was observed in the production of furan-based oligoesters. The present biobased oligoesters are obtained via a green process and have potential application as macromonomers.


2014 ◽  
Vol 898 ◽  
pp. 296-299
Author(s):  
Xin Tang

Thermo-responsive elastin-like polypeptides (ELPs) were successfully obtained by inverse transition cycling (ITC) and recursive directional ligation (RDL). Six ELPs displayed thermal properties, depending on their sequence and chain length. It was found that the ELP[KV8F-4 and ELP[KV8F-8 were effective as thermosensitive materials at the body temperature with phase transition temperature from 35 to 45oC.


Sign in / Sign up

Export Citation Format

Share Document