Under-the-Radar Innovations in Chemistry, Part 4: Biobased Polymers – Building a Sustainable Plastics Future
What Are Biobased Polymers?
Biobased polymers (or bioplastics) are derived from renewable resources such as corn, sugarcane, and cellulose. Unlike traditional petroleum-based plastics, these materials often promise a reduced carbon footprint and, in some cases, improved end-of-life options like compostability or chemical recycling.
Why It’s Important
1. Environmental Benefits: Switching to renewable feedstocks can lower greenhouse gas emissions and reduce fossil fuel reliance.
2. Circular Economy Alignment: Many biobased polymers are either biodegradable or more easily recycled, aligning with global sustainability targets.
3. Consumer Demand: Eco-conscious consumers and brand owners increasingly want “green” packaging and products. Meeting these demands can yield significant market advantages.
Real-World Example: NatureWorks and Braskem
· NatureWorks: Produces PLA (polylactic acid) under the trade name Ingeo, made from corn starch in the U.S. They publish life-cycle assessments indicating that PLA production can emit up to 75% fewer greenhouse gases compared to traditional plastics.
· Braskem: Manufactures “I’m Green” polyethylene from sugarcane ethanol in Brazil. Independent life-cycle analyses confirm its lower carbon footprint compared to petro-based PE.
Illustrative Example
Picture a consumer goods company looking to reduce the environmental impact of its shampoo bottle packaging. By opting for biobased polyethylene, the company not only cuts CO₂ emissions during polymer production but also offers marketing claims around sustainability, enhancing brand reputation and consumer loyalty.
Key Takeaway
Biobased polymers represent a compelling avenue for the industry’s transition toward a circular economy. While feedstock costs, infrastructure, and composting regulations remain challenges, successful commercial examples prove that scaling up these materials is both feasible and profitable.