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Nylon 1,6 (aka polyamide 1,6) is a type of polyamide or nylon. [1] Unlike most other nylons, nylon 1,6 is not a condensation polymer, but instead is formed by an acid-catalyzed synthesis from adiponitrile, formaldehyde, and water. The material was produced and studied by researchers at DuPont in the 1950s. [2]
Many of the world records in swimming were established by swimmers wearing bodysuits or suits made of polyurethane or other non-textile materials allowed in the race pool from February 2008 until December 2009. These suits seemed to improve the performance for top athletes, especially those with larger physiques.
Originally known as surf trunks, later as Jams, and occasionally in British English as swim shorts, boardshorts are a style of male [1] and, more recently, female [2] summerwear. The name "boardshorts" is based on their use in aquatic sports that use a board, such as surfing .
Melon Dash has been teaching swimming to adults afraid to get into the water for decades, in a world where swim instruction focuses mostly on kids. But three out of four drowning deaths involve ...
Arena X-Glide is a swimsuit from the Arena brand, made of pure polyurethane that causes a swimmer to slide through water faster when swimming. One notable example of the efficacy of this suit design is that of Paul Biedermann of Germany who wore the suit in the 2009 World Championships , breaking two world records. [ 1 ]
Shenghua Wen, a 41-year-old Chinese national illegally living in Ontario, California, is accused of shipping guns and ammunition to North Korea.
The man, known by his username Mdallo1990, allegedly lost $942,232.32 between Jan. 1, 2020, and Jan. 13, 2024, due to his gambling habits, according to a lawsuit filed on Thursday, Dec. 6, in New ...
The reaction of 1,4-phenyl-diamine (para-phenylenediamine) and terephthaloyl chloride to produce an aramid. Polyamides can also be synthesized from dinitriles using acid catalysis via an application of the Ritter reaction. This method is applicable for preparation of nylon 1,6 from adiponitrile, formaldehyde and water. [4]