by admin | Jun 4, 2015 | sem1
Mechanism of Condensation Polymerization You know that monomers that are joined by condensation polymerization have two functional groups. You also know (from Part 6) that a carboxylic acid and an amine can form an amide linkage, jand a carboxylic acid and an alcohol...
by admin | Jun 4, 2015 | sem1
Properties of Nylon 66 Nylon 66 has a repeat unit with a molecular weight of is 226.32 g/mol and crystalline density of 1.24 g/(cm)^3 . Nylon 66 has long molecular chains resulting in more hydrogen bonds, creating chemical springs and making it very resilient. Nylon...
by admin | Jun 4, 2015 | sem1
Nylon 66 Uses Nylon 66 is a type of polyamide or nylon. Nylons come in many types, and the two most common for textile and plastics industries are nylon 6 and nylon 6 6. Nylon 66 is made of two monomers each containing 6 carbon atoms, hexamethylenediamine, and adipic...
by admin | Jun 4, 2015 | sem1
Properties of polymers Polymers are very large molecules that are made up of thousands – even millions – of atoms that are bonded together in a repeating pattern. The structure of a polymer is easily visualized by imagining a chain. The chain has many...
by admin | Jun 4, 2015 | sem1
Endoscope Endoscope: A lighted optical instrument that is used to get a deep look inside the body. An endoscope, which may be rigid or flexible, can be used to examine organs, such as the throat or esophagus. Specialized endoscopes are named for where they are...
by admin | Jun 4, 2015 | sem1
Optic Fibre What is optic fibre? Optical fibers are fine transparent glass or plastic fibers which can propagate light. They work under the principle of total internal reflection from diametrically opposite walls. In this way light can be taken anywhere because fibers...
