Polymer Chemistry
Research Program
Timur Beletskii
Niskayuna High School
Niskayuna, New York
Mini Me Project
Made from methacrylate/acrylate polymers
3Doodler Pen
Resin is made of PLA and ABS, two common polymers for
3D Printing
PLA: Poly(lactic acid) & ABS (Acrylonitrile Butadiene Styrene Copolymer)
ABS and PLA-both thermoplastic (can be melted
and cooled multiple times, useful for injection
molding) ABS- Acrylonitrile butadiene styrene, Oil based
Amorphous polymer
Tg ~ 105 oC
PLA and ABS continued
PLA- Polylactic Acid, Organic
(C3H4O2)n (C3H4O2)n(C3H4O2)n
Semicrystalline Polymer
Tg ~ 50 – 55 oC
Tm ~ 150 oC
FTIR- Fourier-transform infrared spectroscopy
A method of spectroscopy (study of interaction
between EM radiation and matter) using IR light
Changes the vibrations between bonds and allows
us to discover the type of bonds/atoms/functional
groups in a molecule
Graph of absorption vs. wavenumber (cm-1) have
different peaks for different substances
How to interpret
an FTIR graph
(http://academics.wellesley.edu/Chemistry/chem21
1lab/Orgo_Lab_Manual/Appendix/Instruments/Infra
redSpec/Chem211%20IR%20Lit%20Value%20Tabl
e.pdf)
FTIR Results for ABS (Desrousseaux, Camille & Cueff, Régis & Aumeran, Claire & Garrait, Ghislain & Mailhot,
Bénédicte & Traoré, Ousmane & Sautou, Valérie. (2015). Fabrication of Acrylonitrile-Butadiene-Styrene Nanostructures with Anodic Alumina Oxide Templates,
Characterization and Biofilm Development Test for Staphylococcus epidermidis. PLoS ONE. 10.1371/journal.pone.0135632)
C=H-H C-C-H
C=O
FTIR Results from lab- Electric tape adhesive
sp3C-H
bond
vibration
Wave number (cm-1)
C=O
Near
~ 1750 cm-1
SEM- Scanning Electron Microscope
-Uses electrons to produce
an extremely high resolution
image
-Surface of sample piece
must be in vacuum and be
electrically conductive
What I learned
Throughout the week I learned about the basic chemistry surrounding polymers
and their structure. I also learned about advanced methods of classification like
FTIR, DSC, and SEM and the chemistry/physics behind these machines. I also
learned about 3D Printing and its fundamentals, Tg and Tm , viscosity, and radical
photopolymerization.
Citations
https://www.researchgate.net/publication/281176870_Fabrication_of_Acrylonitrile-
Butadiene-
Styrene_Nanostructures_with_Anodic_Alumina_Oxide_Templates_Characterizati
on_and_Biofilm_Development_Test_for_Staphylococcus_epidermidis
http://academics.wellesley.edu/Chemistry/chem211lab/Orgo_Lab_Manual/Append
ix/Instruments/InfraredSpec/Chem211%20IR%20Lit%20Value%20Table.pdf
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