Chemistry

Engine cover

Castor oil protects the engine

Components in the engine compartment of a car must be able to withstand extreme heat loads of over 200 degrees Celsius. Daimler uses biopolyamide engine covers for the Mercedes A-Class. While conventional plastic is produced from crude oil, the cover consists largely of castor oil. The oil is extracted from the seeds of the castor oil plant Ricinus communis, which belongs to the spurge family.

Cleaner

Straw to alcohol

Alcohol has fat and dirt dissolving properties, therefore it is particularly well suited as an additive to cleaners. In cooperation with the chemical company Clariant, the family-owned company Werner & Mertz, known for its ecological and environmentally friendly “Frosch”-products has tested the use of bioethanol based on straw in washing and cleaning agents. 

Trainers

Sustainable remake

The rice husks replace a part of the rubber used for the outsoles, thereby decreasing the quantity of petroleum-based rubber in the shoe. Compared to conventional products, the `Re-Suede´ reduces CO2 emissions by 80%. This is because not just the outsole is made from waste materials. The synthetic Ultrasuede upper material is also comprised of recycled polyester fibres. The remake of Puma’s classic trainer ‘Suede’ was designed as an eco-product based mainly on recycling.

Smart molecular building blocks

Our bodies, windows or plastic bottles – all of them are made up of different molecules. The big difference however: while the molecules in the human body or other living organisms are in constant exchange with their surroundings, artificially produced material is not. This in turn directly affects their ability to break down after being used.

Microorganisms transform exhaust fumes into bioplastic

Art history or biology? During his school days, Johannes Gescher couöd have chosen either one. Eventually though, the biology studies won out, and the young student moved from his birthplace of Fulda to the university town Freiburg. Once there he was captivated by the world of microorganisms almost immediately: “Even during my undergraduate degree, I saw that my future was in microbiology,” Gescher says today.

3D structure of a fertilizer producing enzyme

The vanadium-dependent nitrogenase is an enzyme that catalyses two important processes: On the one hand it converts atmospheric nitrogen (N2) to ammonia, on the other hand it reduces carbon monoxide (CO) to hydrocarbons. Today, both reactions are run on a big scale by chemical catalyses to produce ammonia and fuels for industry. In additon, ammonia is used as synthetic fertilizer to ensure the food production for at least half of the world’s population.

Dowel

Castor for firm hold

Normally, dowels are made from highly robust and resistant plastics such as nylon. The Baden-Württemberg-based construction company Fischer relies on a polymer that is partly based on castor oil as a raw material. The oil is extracted from the seeds of the castor oil plant Ricinus communis, which belongs to the spurge plant genus.

Turning organic waste into fuel

Until now, converting organic waste into fuel has not been economically viable. Excessively high temperatures and too much energy were required. Researchers at the Technical University of Munich (TUM) managed to significantly reduce the temperature and energy requirements for an integral step of the chemical process by using a novel catalyst concept: they confined the reaction to small spaces inside zeolite crystals.

Lindau: Spotlight on green chemistry

The Lindau Nobel Laureate Meeting is a prestigious melting pot for Nobel Laureates and talented young researchers. The renowned event has been held every year since its inception in 1951 and takes place during the last week of June at Lake Constance in the south of Germany. This year, 28 laureates have come together in Lindau. The overarching themes alternate between Chemistry, Physics, and Medicine & Physiology each year – this year the focus lies on Chemistry.