#ethene

[whats-in-a-sentence]

Ethylene glycol (see figure 19.2) and propylene glycol are synthesised from ethylene (ethene) and propylene (propene) respectively, hence their common names as shown below.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[materialsscienceandengineering]

High temperature step-by-step process makes graphene from ethene

An international team of scientists has developed a new way to produce single-layer graphene from a simple precursor: ethene -- also known as ethylene -- the smallest alkene molecule, which contains just two atoms of carbon.

By heating the ethene in stages to a temperature of slightly more than 700 degrees Celsius -- hotter than had been attempted before -- the researchers produced pure layers of graphene on a rhodium catalyst substrate. The stepwise heating and higher temperature overcame challenges seen in earlier efforts to produce graphene directly from hydrocarbon precursors.

Because of its lower cost and simplicity, the technique could open new potential applications for graphene, which has attractive physical and electronic properties. The work also provides a novel mechanism for the self-evolution of carbon cluster precursors whose diffusional coalescence results in the formation of the graphene layers.

The research, reported as the cover article in the May 4 issue of the Journal of Physical Chemistry C, was conducted by scientists at the Georgia Institute of Technology, Technische Universität München in Germany, and the University of St. Andrews in Scotland. In the United States, the research was supported by the U.S. Air Force Office of Scientific Research and the U.S. Department of Energy's Office of Basic Energy Sciences.

Read more.

[whats-in-a-sentence]

Top construct the double bond, we overlap the two pz orbitals in a side-by-side fashion to form a pi (π) bond, as shown in figure 5.40. (...) Figure 5.40 shows the complete orbital picture of the bonding in ethene.

[whats-in-a-sentence]

We can do this, as shown in figure 5.39, by using two sp² hybrid orbitals on each carbon to form two C-H σ bonds, with the C-C bond formed by overlap of the remaining sp² hybrid orbital on each C atom.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[tenth-sentence]

Because ethene stimulates the breakdown of cell walls, it is used commercially to speed up the ripening of fruit, particularly bananas.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[reitsportportal]

Marc Dilasser gewinnt mit Arioto de Gevres die letzte Weltcup-Etappe im schwedischen Göteborg

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[birextraclass-blog]

what is Polyethylene? | Extraclass.com

This video explains composition types and various uses of Ethene...so let's start to watch and understand Ethene (Polythene). Extraclass.com in an initiative...

in this video explain the basics of polyethylene with us - Extraclass.com

[binary5tar1117]

Day 6: Families and Friendships

Ethene hasn’t spoken to her biological family in years, but through the Inquisition she has made many friends. Her closest are Cassandra and Varric, like bickering older siblings, and Dorian. They became close after witnessing the alternate future together and now she goes to him with just about all her problems, from philosophy and magic to fashion and relationships. Cullen even gets jealous of their relationship before he realizes it would never be anything more than plutonic.

The one person Ethene doesn’t get along with at all is Vivienne. They rarely see eye to eye and Ethene feels when they disagree Vivienne treats her like an ignorant child. Still, she tries to be civil and knows that the Court Enchanter is a talented mage and an important part of the Inquisition.

Over all Ethene is a people pleaser. She takes a while to relax around new people. She tries to get along with everyone and meet their expectations of her. Eventually, most of her companions realize this and tell her to relax around them.