Part one of term paper
is an organic fiber in the aromatic polyamide family. It has unique properties and a chemical composition that is its own, which distinguishes it from other man-made fibers. is a combination of high strength, high modulus (resistance to extension), toughness and thermal stability. has a wide range of uses. In the 1960s nylon and polyest ...

Part two of term paper
... done by mechanically drawn in after spinning. This required chain disentanglement and orientation in the solid phase of it. Therefore the strength and modulus levels were far lower than theoretically possible values. In 1965, scientists at Du Pont discovered a new method of producing an almost perfect polymer chain extension. The polymer poly-p-benzamide was found to form liquid crystalline solutions due to the repetitiveness of its molecular backbone. The key for the structural requirement fo ...