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A Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins). Two broad classes of Ziegler–Natta catalysts are employed, distinguished by their solubility:
Giulio Natta was an Italian chemical engineer and Nobel laureate. He won a Nobel Prize in Chemistry in 1963 with Karl Ziegler for work on high polymers. He also received a Lomonosov Gold Medal in 1969.
A Newman projection is a drawing that helps visualize the 3-dimensional structure of a molecule. This projection most commonly sights down a carbon-carbon bond, making it a very useful way to visualize the stereochemistry of alkanes. A Newman projection visualizes the conformation of a chemical bond from front to back, with the front atom represented by the intersection of three lines and the back atom as a circle. The front atom is called proximal, while the back atom is called distal. This type of representation clearly illustrates the specific dihedral angle between the proximal and distal atoms.
High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a thermoplastic polymer produced from the monomer ethylene. It is sometimes called "alkathene" or "polythene" when used for HDPE pipes. With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes and plastic lumber. HDPE is commonly recycled, and has the number "2" as its resin identification code.
Alessandro Natta was an Italian politician and secretary of the Italian Communist Party (PCI) from 1984 to 1988. An illuminist, Jacobin, and communist, as he used to describe himself, Natta represented the political and cultural prototype of a PCI militant and party member for over fifty years of the Italian democratic-republican history. After joining the PCI in 1945, he was deputy from 1948 to 1992, a member of the PCI's central committee starting in 1956, was part of the direction from 1963 and of the secretariat, first from 1962 to 1970 and then from 1979 to 1983, and leader of the PCI parliamentary group from 1972 to 1979; he was also the director of Rinascita from 1970 to 1972. After 1991, he did not join the PCI's successor parties.
Cyclopentene is a chemical compound with the formula (CH2)3(CH)2. It is a colorless liquid with a petrol-like odor. It has few applications, and thus is mainly used as a minor component of gasoline, present in concentrations of less than 1%. It is one of the principal cycloalkenes.
Crimson Rivers II: Angels of the Apocalypse is a 2004 action thriller film movie starring Jean Reno, Benoît Magimel, and Christopher Lee. It is directed by Olivier Dahan and produced by Ilan Goldman, and is an international co-production of France, Italy and the United Kingdom. It is the sequel to the 2000 film The Crimson Rivers. However, the 2000 film's creator Jean-Christophe Grangé wasn't creatively-involved in the sequel; instead, the movie was written by Luc Besson, whose company EuropaCorp also co-produced this movie.
Don Van Natta Jr. is an American journalist, writer and broadcaster. He is an investigative reporter for ESPN, since January 2012, and the host and executive producer of “Backstory,” an ESPN docuseries. He previously worked for 16 years as an investigative correspondent at The New York Times, where he was a member of two teams that won Pulitzer Prizes.
Chittaranjan Avenue, more commonly C.R. Avenue, a principal north-south thoroughfare in Central-North Kolkata. It starts from Beadon Street crossing in the north and ends at Chowringhee Road-Bentinck Street Junction (Esplanade) in the south. The road is renamed after Deshbandhu Chittaranjan Das, a nationalist politician and freedom-fighter of India. North of Beadon Street crossing, Chittaranjan Avenue becomes Jatindra Mohan Avenue.
Hillary Diane Rodham Clinton is an American politician and diplomat who served as the 67th United States secretary of state in the administration of Barack Obama from 2009 to 2013, as a U.S. senator representing New York from 2001 to 2009, and as the first lady of the U.S. to president Bill Clinton from 1993 to 2001. A member of the Democratic Party, she was the party's nominee in the 2016 U.S. presidential election, becoming the first woman to win a presidential nomination by a major U.S. political party and the first woman to win the popular vote for U.S. president.
Alfiano Natta is a comune (municipality) in the province of Alessandria in the Italian region Piedmont, located about 40 kilometres (25 mi) east of Turin and about 35 kilometres (22 mi) northwest of Alessandria.
Castelletto Merli is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 40 kilometres (25 mi) east of Turin and about 35 kilometres (22 mi) northwest of Alessandria.
Villadeati is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 35 kilometres (22 mi) east of Turin and about 40 kilometres (25 mi) northwest of Alessandria.
Owen Thomas Van Natta is an American businessman who has found success in a variety of tech spaces, including e-tail, social networking, music streaming, gaming, finance and investment. He currently serves as Founder of OVN Capital and has held notable positions in various tech companies, including Amazon.com, Facebook, Myspace, BOKU Mobile Payments, and Zynga. Van Natta holds a bachelor's degree in English and American literature from the University of California, Santa Cruz.
Diethylaluminium chloride, abbreviated DEAC, is an organoaluminium compound. Although often given the chemical formula (C2H5)2AlCl, it exists as a dimer, [(C2H5)2AlCl]2 It is a precursor to Ziegler-Natta catalysts employed for the production of polyolefins. The compound is also a Lewis acid, useful in organic synthesis. The compound is a colorless waxy solid, but is usually handled as a solution in hydrocarbon solvents. It is highly reactive, even pyrophoric.
Natta is a spider genus.
Jamie Van Natta is an American compound archer. The highest ranking she has reached in women's compound archery is the first position, which she reached for the last time in May 2009.
Harsha, also known as Shri Harsha, was a king of the Chandela dynasty of India. He ruled in the Jejakabhukti region.
Sumit Bhaduri is an Indian organometallic chemist and was a senior scientific advisor to Reliance Industries. He is known for his studies on metal-carbonyl clusters and to the polymer-supported catalysis and is credited with the development of technology for the manufacture of Ziegler-Natta polypropylene catalyst which is in use with Reliance Industries.
Mark Natta is an Australian professional soccer player who plays as a central defender for the Newcastle Jets in the A-League.
References
- ↑ Conscience of the Race. Publications Division Ministry of Information & Broadcasting. ISBN 9788123026619.
