Synthesis and Characterization of Self-Assembled Sulfonated Poly(styrene-b-vinylidene fluoride-b-styrene) Triblock Copolymers for Proton Conductive Membranes

2007 ◽  
Vol 19 (24) ◽  
pp. 5937-5945 ◽  
Author(s):  
Kui Xu ◽  
Kun Li ◽  
Paisan Khanchaitit ◽  
Qing Wang
Keyword(s):  
Vinylidene Fluoride ◽  
Triblock Copolymers ◽  
Synthesis And Characterization ◽  
Conductive Membranes ◽  
Self Assembled ◽  
Sulfonated Poly

scholarly journals Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Materials Science ◽  
Critical Micellar Concentration ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Visible Spectroscopy ◽  
Amide Bonds ◽  
Transmission Electron ◽  
Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

Synthesis and characterization of hydrophobic long-chain fatty acylated cellulose and its self-assembled nanoparticles

2012 ◽  
Vol 69 (4) ◽  
pp. 389-403 ◽  
Author(s):  
Yanzhu Guo ◽  
Xiaohui Wang ◽  
Dong Li ◽  
Hong Du ◽  
Xiaoying Wang ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Self Assembled ◽  
Long Chain
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