what are the compounds of plastic?

Question

i wold like to get a list of all compounds in plastic

Answer 1

There are all kinds of different materials lumped under the generic heading of "plastics". The variations run into hundreds, perhaps even thousands of compounds!

For example, there's nylon. The most familiar form, nylon 66, is a copolymer of adipic acid or adipoyl chloride and hexamethylene diamine. But I can substitue various hydrocarbon chains in those two components to make nylon 55, nylon 65, nylon 48, nylon 83, etc.

Then there are the families of polyaramid polymers, and polyester polymers, and polycarbonates, and . . . .

Nobody will ever be able to give you an exhaustive list here. Try looking up some books on polymer chemistry at your library.

Answer 2

Different plastics have different polymers.

Polymers are the main component of plastics; it is a long, repeating chain of a semi-simple compound

For example, Vinyl chloride is CH2=CHCl
Poly(vinyl chloride), or PVC, is CH2- CHCl- CH2- CHCl- CH2- CHCl- ... repeating several hundred to several thousand times.

Some plastics have more than one type of polymer, either as a mixture of the two polymers, or they are formed together as a copolymer. (CH2- CHCl - CH2- CHC6H5- CH2- CHCl- CH2- CHC6H5-... is poly(vinyl chloride) copoly(styrene).

For recyclable plastics, there is a number code (called the resin identification code) to allow easier seperation;
1 is PETE, or Polyethylene Terephthalate
2 is HDPE, High Density Polyethylene
3 is V, polyvinyl chloride
4 is LDPE, Low Density Polyethylene
5 is PP, Polypropylene
6 is PS, Polystyrene
7 is other, any other recyclible plastic.

For some plastics, especially if it is flexible (with the obvious exception of rubber), there is a plasticizer added. This is typically a phthalate or chloride containing compound, and many have been banned because they 'leech' out of the plastic over time, with contact with moisture, humidity, heat or light. There are several safe plasticizers used today.

Hope this helped.