Question

a define polymer chemistry b write at least three synthectic fibres and explain their properties and uses​

Answer 1

Answer:

Synthetic polymers are human-made polymers derived from petroleum oil. From the utility point of view they can be classified into three main categories: thermoplastics, elastomers and synthetic fibers. They are found commonly in a variety of consumer products such as honey, glue, etc.

A wide variety of synthetic polymers are available with variations in main chain as well as side chains. The back bones of common synthetic polymers such as polythene, polystyrene and poly acrylates are made up of carbon-carbon bonds, whereas hetero chain polymers such as polyamides, polyesters, polyurethanes, polysulfides and polycarbonates have other elements (e.g. oxygen, sulfur, nitrogen) inserted along to the backbone. Also silicon forms similar materials without the need of carbon atoms, such as silicones through siloxane linkages; these compounds are thus said to be inorganic polymers. Coordination polymers may contain a range of metals in the backbone, with non-covalent bonding present.

Some familiar household synthetic polymers include: Nylons in textiles and fabrics, Teflon in non-stick pans, Bakelite for electrical switches, polyvinyl chloride (PVC) in pipes, etc. The common PET bottles are made of a synthetic polymer, polyethylene terephthalate. The plastic kits and covers are mostly made of synthetic polymers like polythene and tires are manufactured from Buna rubbers.[1] However, due to the environmental issues created by these synthetic polymers which are mostly non-biodegradable and often synthesized from petroleum, alternatives like bioplastics are also being considered. They are however expensive when compared to the synthetic polymers.[2]

IUPAC definition

Artificial polymer: Man-made polymer that is not a biopolymer.

Note 1: Artificial polymer should also be used in the case of chemically

modified biopolymers.

Note 2: Biochemists are now capable of synthesizing copies of biopolymers

that should be named Synthetic biopolymer to make a distinction

with true biopolymers.

Note 3: Genetic engineering is now capable of generating non-natural analogues

of biopolymers that should be referred to as artificial biopolymers, e.g.,

artificial protein, artificial polynucleotide, etc.

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Answer 2

Answer:

Polymer chemistry is the study of the synthesis, characterization and properties of polymer molecules or macromolecules, which are large molecules composed of repeating chemical subunits known as monomers.

Explanation:

rayon nylon acrylic are examples

property is that they can be flexible and elastic or stiff and strong or they can have high or low water absorbancy. Compared to natural fibers, synthetic fibers are usually more water, stain, heat and chemical resistant.

It is used in making ropes, fishing nets and seat belts. Polyester – Derived from coal and petroleum, this fiber is wrinkle-free and easily washable. It is used in making jackets, raincoats and ropes.