Making color changing plastic

TL;DR

Learn how to synthesize the photochromic compound DN BP and explore its color-changing properties in various applications.

Transcript

this video has been sponsored by Nord VPN you can go to Nord VPN comm / nyle read to get 77 percent off a three year plan today I'll be making a chemical called two to four die nitro benzyl pyridine or DN BP for short which exhibits something called photochromism this means that when it's exposed to light it undergoes a reversible change in color u... Read More

Key Insights

• 💱 DN BP is a photochromic compound that undergoes a reversible color change when exposed to UV or sunlight.
• ❓ The synthesis of DN BP can be achieved using a nitration reaction with sulfuric and nitric acid.
• 😎 DN BP is used in various products like sunglasses, toys, clothing, and cosmetics due to its ability to transition between different colors.
• 🪡 DN BP-coated paper can be used to develop photos, although the coating method needs refinement for optimal results.
• 💱 DN BP can be mixed with epoxy resin to create color-changing plastic, showcasing the photochromic properties of the compound.
• 🐢 The color-changing process of DN BP can be accelerated by heating or slowed down by keeping it in darkness.
• ❓ Different solvent and crystallization methods may influence the photochromic properties of DN BP.

Questions & Answers

Q: What is photochromism and how does DN BP exhibit this property?

Photochromism refers to the reversible color change exhibited by certain compounds when exposed to light. DN BP undergoes a structural change when exposed to UV or sunlight, resulting in a change from brownish-yellow to blue.

Q: How was DN BP synthesized in the video?

DN BP was synthesized using a nitration reaction, where two nitro groups were added to two-benzyl pyridine using a mixture of sulfuric and nitric acid. The reaction was heated, and the product was purified through solvent extraction and neutralization.

Q: Can DN BP be used to develop photos?

The video demonstrates an attempt to develop a photo using DN BP-coated paper. Although the results were not optimal, further experimentation with different coating methods may improve the quality.

Q: How can DN BP be used to create color-changing plastic?

DN BP was mixed with epoxy resin and poured into a mold. As the epoxy cured, the color of the plastic changed, showcasing the photochromic properties of DN BP. However, the color change may vary depending on the concentration of DN BP used.

Summary & Key Takeaways

• The video demonstrates the synthesis of a photochromic compound called DN BP, which undergoes a reversible color change when exposed to light.

• DN BP is used in various products like sunglasses, toys, clothing, and cosmetics due to its ability to transition between different colors.

• The video showcases experiments using DN BP to develop photos, create color-changing plastic, and explore its photochromic properties.