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Thermosetting polymers - Classification of polymers
These are the polymers which go through permanent modification on heating. They get firm and infusible on heating. They are generally built from low molecular mass semifluid molecules. While heated they went highly cross linked to make hard infusible and insoluble components. The cross links take the atom in place that is why heating does not permit them to move liberally. Thus a thermosetting plastic is cross linked and is lastingly rigid.
Bakelite: It is thermosetting plastics which are most widely used and the most important plastics. Preparation: It is formed by condensation reaction of phenol an
Metallic Acetates - Acetic Acid For making several useful metallic acetates, illustrated as: (1) Basic copper acetate that is used for making green paints. (2) Al, Fe and
Q. Show the diffrent kind of matter? Liquid matter has a specific volume like a solid but flows and takes the shape of its container. A liquid is incompressible for the reaso
Explain in detail about the thermal oxidation The following reactions take place during thermal oxidation: During oxidation, Si - SiO 2 interface moves into silicon. A
hydrogen behave as a metal at low pressure only why
Ratio scales It is also possible to record liking or acceptability using magnitude estimation scaling methods, but consumers may find it difficult to handle the concept of rat
What is differences by alkali metal and alkaine earth metal which provided colour
what can be formed by sodium reacting with epsum salt
Aldol condensation - Aldehydes and Ketones (a) This reaction occurs between two molecules of carbonyl compounds; one molecule should have at least two α-hydrogen sets. In that
what is chemistry
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