Poly (vinyl chloride) or PVC.

PVC is a very important thermoplastic and is known as koroseal.
It is prepared by the free radical polymerisation of vinyl chloride in the presence of small amount of free radical initiator like benzoyl peroxide.

Poly (vinyl chloride).
It is colourless, odourless, non- inflammable and a chemically inert plastic.
Due to strong intermolecular attractions in polymeric chains, it is a hard polymer.
It is soluble in cyclohexanone and Tetrahydrofuran (THF).
It has high resistance to chemicals, oils and weathering.
PVC is used for making plastic bags.
PVC is used for making sewage pipe.
PVC is used for making insulating wires.
PVC is used for making window frames.
PVC is used for making bottles for storing mineral water, vinegar, cosmetics, detergents etc. Next

Uses of PVC.

Questions on polyvinyl chloride

Q1) What is polyvinyl chloride?

Ans) Polyvinyl chloride is a very important thermoplastic and is also known as koroseal.

Q2) What is the monomer of Polyvinyl chloride?

Ans) Vinyl chloride is the monomer of Polyvinyl chloride.

Q3) How is Polyvinyl chloride prepared?

Ans) Polyvinyl chloride is prepared by free radical addition polymerisation of vinyl chloride in the presence of small amount of free radical initiator like benzoyl peroxide.

Q4) Write some properties of Polyvinyl chloride?

Ans) Some properties of polyvinyl chloride are given below;

1) It is colourless, odourless, non- inflammable and chemically inert plastic.

2) Due to strong intermolecular attractions in polymeric chains, it is a hard polymer.

3) It is soluble in cyclohexanone and Tetrahydrofuran (THF).

4) It has high resistance to chemicals, oils and weathering.

Q5) Write some uses of Polyvinyl chloride?

Ans) Some uses of Polyvinyl chloride are given below;

1) PVC is used for making plastic bags.

2) PVC is used for making sewage pipe.

3) PVC is used for making window frames.

4) PVC is used for making bottles for storing mineral water, vinegar, cosmetics, detergents etc.

Comments

Determination of molecular weight by osmotic pressure method

Determination of molecular weight by osmotic pressure method. Osmotic pressure method is also called membrane osmometry. This method is widely used to determine the number average molecular weight of polymers. This method is based on the phenomenon of osmosis. If a pure solvent is separated from a solution through a semipermeable membrane, due to concentration (chemical potential) difference between the solvent and solution, the solvent will flow into the solution through semipermeable membrane. The pressure applied on the solution to completely stop the flow of solvent into it through semipermeable membrane is called osmotic pressure. The theory of osmotic pressure also applies to a solution of polymers. Ordinary solution obeys Van't Hoff equation i.e π=cRT/M Where π is osmotic pressure, c is concentration in mass per unit volume, R is gas constant, T is temperature and M is molar mass. The polymer solution are non ideal. Taking into account their deviation and us...

Polypropylene (PP)

Polypropylene (PP). Polypropylene (PP) is also known as polypropene. Polypropylene is made from the polymerisation of propylene gas in the presence of Zeiglar Natta catalyst or metallocene catalyst. Polypropylene. Thus propene (or propylene) is the monomer of polypropylene. Polypropylene is a highly flammable material. It is sensitive to microbial attacks, such as bacteria and mold. It exhibits excellent resistance to diluted and concentrated acids, alcohols and bases. Polypropylene is used to make lunch boxes, margarine containers, yogurt pots, syrup bottles etc. Disposable syringes is the most common medical application of polypropylene. Polypropylene rope and twine are very strong and moisture resistant very suitable for marine applications. Polypropylene, highly colorfast, is widely used in manufacturing carpets, rugs and mats. Uses of Polypropylene. Questions on polypropylene; Q1) What is polypropylene? Ans) Polypropylene is a polymer of propylen...

Polylactic acid/PLA.

Polylactic acid/PLA. Polylactic acid is a biodegradable thermoplastic polymer . Polylactic acid is obtained from lactic acid monomer. Polylactic acid. Polylactic acid is stable to UV radiation. Polylactic acid has good resistance to moisture. Polylactic acid has good elasticity. Polylactic acid is an aliphatic polyester . It can be used as a food packaging polymer. Polylactic acid is suitable for textile fibre applications such as shirts, carpets, sportswear etc. Polylactic acid is used in implants and medical devices (screws, sutures etc). Polylactic acid is suitable for use in floor mats. Uses of Polylactic acid. Questions on Polylactic acid/PLA; Q1) What is Polylactic acid? Ans) Polylactic acid is a biodegradable thermoplastic polymer. Q2) What is the monomer of Polylactic acid? Ans) Polylactic acid is obtained from lactic acid monomer. Q3) Write some properties of Polylactic acid? Ans) Some properties of Polylactic acid are given below; ...

Polymers

Search This Blog