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Q.

Name the long chain molecule used to make plastic

Asked by S Sidharth, 11 Mar '09 11:09 pm
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Answers (6)

1.

A plastic is made up principally of a binder together with plasticizers, fillers, pigments, and other additives. The binder gives a plastic its main characteristics and usually its name. Thus, polyvinyl chloride is both the name of a binder and the name of a plastic into which it is made. Binders may be natural materials, e.g., cellulose derivatives, casein, or milk protein, but are more commonly synthetic resins. In either case, the binder materials consist of very long chainlike molecules called "Polymers".
Answered by Joseph Chacko, 12 Mar '09 12:56 am

 
  
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2.

He building blocks for making plastics are small organic molecules - molecules that contain carbon along with other substances. They generally come from oil (petroleum) or natural gas, but they can also come from other organic materials such as wood fibers, corn, or banana peels! Each of these small molecules is known as a monomer ("one part") because it's capable of joining with other monomers to form very long molecule chains called polymers ("many parts") during a chemical reaction called polymerization. To visualize this, think of a single paper clip as a monomer, and all the paper clips in a box chained together as a polymer.
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Answered by anil garg, 25 Dec '11 04:34 pm

 
  
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3.

Many short molecules join together (by one of the two reactions - addition as in polythene or condensation as in terelene) to form long chains called fibers. Some of these materials have properties of plastics and can be modified by additional material and different processing. If a single name for these compounds is meant ' polymer' can be used. But the names are specifically derived from monomer units involved.
Answered by Arakuzha Ramachandran, 12 Mar '09 08:45 am

 
  
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4.

Many of the chemical names of the polymers employed as plastics have become familiar to consumers, although some are better known by their abbreviations or trade names. Thus, polyethylene terephthalate and polyvinyl chloride are commonly referred to as PET and PVC, while foamed polystyrene and polymethyl methacrylate are known by their trademarked names, Styrofoam and Plexiglas (or Perspex).

Industrial fabricators of plastic products tend to think of plastics as either commodity resins or specialty resins. (The term resin dates from the early years of the plastics industry; it originally referredto naturally occurring amorphous solids such as shellac and rosin.) Commodity resins are plastics that are produced at high volume and low cost for the most common disposable items and durable goods. They are represented chiefly by polyethylene, polypropylene, polyvinyl chloride, and polystyrene. Specialty resins are plastics whose properties are tailored to specific applications and that are ...more
Answered by KARTIKAY SHARMA, 11 Mar '09 11:22 pm

 
  
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5.

Polythene
Answered by deepika, 11 Mar '09 11:11 pm

 
  
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6.

Polymer ?
Answered by thampy chacko, 11 Mar '09 11:10 pm

 
  
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