Difference between revisions of "Team:TU Darmstadt/Project/Chem"
| Line 11: | Line 11: | ||
<h2>Schematic overview</h2> | <h2>Schematic overview</h2> | ||
| + | <Pic!!!> | ||
| + | <h2>Itaconic acid (IA)</h2> | ||
| + | <p>This is the crucial monomer, because it is photoactive. It contains a carbon double bond that undergoes the light-initiated crosslinking during the final printing process. The other important chemical functions are the two acid groups at the ends of the molecule. In the chemical generation of the prepolymer they react with the alcohol groups of the other monomers in an esterification reaction and water is released.</p> | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
</div></html> | </div></html> | ||
Revision as of 22:55, 18 September 2015
Introduction
This part is the link between our Biological work and the 3D printer. After we have produced our monomer molecules in E. coli and purified them subsequently, they need to be connected to short polymers, the prepolymers. Those fluid prepolymers are used in our 3D printer as a resin, the basis from which the final and hardened 3D structures emerge.
We used different monomers in varying proportions for produce the prepolymers. We’d be able to create a lot of alternative prepolymers with different physical properties. Those could be utilized to adjust the physical properties of the final polymers.
Schematic overview
Itaconic acid (IA)
This is the crucial monomer, because it is photoactive. It contains a carbon double bond that undergoes the light-initiated crosslinking during the final printing process. The other important chemical functions are the two acid groups at the ends of the molecule. In the chemical generation of the prepolymer they react with the alcohol groups of the other monomers in an esterification reaction and water is released.