Nylon is a synthetic polymer, a plastic, invented on February 28, 1935 by Wallace Carothers at the E.I. du Pont de Nemours and Company of Wilmington, Delaware, USA. The material was announced in 1938 and the first nylon products; a nylon bristle toothbrush made with nylon yarn (went on sale on February 24February 24 is the 55th day of the year in the Gregorian Calendar. There are 310 days remaining, 311 in leap years. By Roman custom February 24 is the day added to a leap year, and the occurrence of February 29 is merely a consequence of this. Events 303, 1938) and more famously, women's stockings (went on sale on May 15May 15 is the 135th day of the year in the Gregorian Calendar (136th in leap years). There are 230 days remaining. Events 1602 Bartholomew Gosnold becomes the first European to discover Cape Cod. 1618 Johannes Kepler confirms his previously rejected disco, 1940Events January-February January 5 FM radio is demonstrated to the FCC for the first time. January 6 World War II: Mass execution of Poles, committed by Germans in the Poznan, Warthegau. January 12 World War II: Russia bombs cities in Finland. February 2 F). Nylon fibres are now used to make many synthetic fabrics, and solid nylon is used as an engineering material.
Chemically, nylon is a condensation polymerCondensation polymers (or polyamides are any class of polymer formed through a condensation reaction, as opposed to addition polymers which involve the reaction of unsaturated monomers. Nylon is a common condensation polymer. It is manufactured by reactin made of repeating units with amideIn chemistry, the term amide has two meanings. It may refer to a certain inorganic anion. It may also refer to a functional group found in organic compounds or to compounds that contain this functional group. The amide anion is the conjugate base of ammon linkages between them: hence it is frequently referred to as a polyamide. It was the first synthetic fibre to be made entirely from inorganic ingredients: coalCoal is a fossil fuel extracted from the ground by mining. It is a readily combustible black or brownish-black sedimentary rock. It is composed primarily of carbon and hydrocarbons, along with assorted other elements, including sulfur. Often associated wi, water and air. These are formed into two intermediate chemicals, most commonly hexamethylene diamine and adipic acid (a dicarboxylic acid), which are then mixed to polymerise. The most common variant is nylon 6,6, also called nylon 66, which refers to the fact that both the diamine and the diacid have 6 carbon backbones. The diacid and diamine units alternate in the polymer chain. Therefore, unlike natural polyamides like proteins, the direction of the amide bond reverses at each bond.
There is no evidence for the popular belief that "nylon" is a contraction of "NY" (for "New York") and "Lon" for "London", the two cities where the material was first manufactured. In 1940Events January-February January 5 FM radio is demonstrated to the FCC for the first time. January 6 World War II: Mass execution of Poles, committed by Germans in the Poznan, Warthegau. January 12 World War II: Russia bombs cities in Finland. February 2 F John W. Eckelberry of Du Pont stated that the letters "nyl" were arbitrary and the "on" was copied from the names of other fibres such as cottonCotton is a soft fibre that grows around the seeds of the cotton plant. The fibre is most often spun into thread and used to make a soft, breathable textile. Cotton is a valuable crop because only about 10% of the raw weight is lost in processing. Once tr and rayon. A later publication by Du Pont (Context, vol. 7, no. 2, 1978) explained that the name was originally intended to be "No-Run" ("run" in this context meaning "unravel"), but was then modified to avoid making such an unjustified claim and to make it sound better. The story goes that Carothers changed one letter at a time until Du Pont's management were satisfied.
Another popular belief is that nylon stands for "now you, lazy old nippon," as nylon was developed in the 1930s. In this sentence nippon stands for Japan, as in the 1930s, the decade in which nylon was developed, a chemical "war" was taking place between the US and Japan.
Even though the word nylon was coined, it was never trademarked.
During World War II, nylon replaced Asian silk in parachutes. It was also used to make tires, tents, ropes, ponchos, and other military supplies. It was even used in the production of a high-grade paper for US currency. At the outset of the War, cotton accounted for more than 80 percent of all fibres used, and manufactured and wool fibres accounted for the remaining 20 percent. By August, 1945, manufactured fibres had risen to 25 percent, and cotton had dropped to 75 percent.
Some conspiracy theorists surmise that cannabis was made illegal because the fibres from the hemp plant, used for fabrics and ropes, were in strong competition with nylon. However, nylon fiber is
more than twice as strong as hemp fiber and weighs 25% less. While hemp was originally used in climbing rope, it is now virtually unused in modern climbing, including countries where cannabis is legal.
