Recycling plastic: Vinyl polymer broken down to aspirin components
Before you read this, look around your room. How much of your surroundings are made of plastic? The chair that you sit on, the desk, the casing on your computer and monitor, the pen you use, the carpet, the shoes you wear, your clothes, your bag, the soda bottle you sip from, the furniture, the walls and even the plumbing- how many items can you identify that are plastic? Depending on where you reside, the majority of the things around you might be made of different types of plastic. Now, if you're outside, various parts of your car, the buses and trains, even the interior of airplanes are mostly plastic. Currently there are not many methods to recycle plastics efficiently without compromising quality. So, it shouldn't come as a surprise that not a day goes by without news of microplastics in our oceans and possibly in our food supply.
Not a day goes by without news of microplastics in our oceans. There are not many efficient methods of recycling plastics without compromising quality. A beacon of hope was recently lit at Shinshu University where researchers discovered acid hydrolysis of a vinyl polymer breaks down into salicylic acid and acetic acid, precursors to dehydroaspirin which in theory can be made into vinyl polymers again.
Yasuhiro Kohsaka Ph D., the Research Initiative for Supra-Materials, Shinshu University
Not a day goes by without news of microplastics in our oceans. There are not many efficient methods of recycling plastics without compromising quality. A beacon of hope was recently lit at Shinshu University where researchers discovered acid hydrolysis of a vinyl polymer breaks down into salicylic acid and acetic acid, precursors to dehydroaspirin which in theory can be made into vinyl polymers again.
Yasuhiro Kohsaka Ph D., the Research Initiative for Supra-Materials, Shinshu University
A beacon of hope was recently lit at Shinshu University where Professor Yasuhiro Kohsaka and his graduate student Akane Kazama discovered acid hydrolysis of a vinyl polymer broke down into salicylic acid and acetic acid. These acids form aspirin through some reactions. Vinyl is the second most common plastic in the world today. Previous recyclable vinyl had been too unstable to work with at room temperature, and was not suitable for practical use.
The team at Shinshu plan to study the reaction mechanism in-depth which they hope will provide insight into real world applications for recyclable vinyl polymers. If it can become cost effective to recycle vinyl on an industrial scale, we will be one step closer to solving the global plastic waste problem.
Original publication
Other news from the department science
Get the chemical industry in your inbox
From now on, don't miss a thing: Our newsletter for the chemical industry, analytics, lab technology and process engineering brings you up to date every Tuesday and Thursday. The latest industry news, product highlights and innovations - compact and easy to understand in your inbox. Researched by us so you don't have to.
