Classification of polymers on the basis of structure
What are the 3 basic structure of polymers?
The four basic polymer structures are linear, branched, crosslinked, and networked.
How can polymers be classified on the basis of their source and structure?
On the basis of source polymers are classified as: Natural polymers (Example: Starch, Cellulose, Portions, etc.) Synthetic polymers (Example: PVC, -Nylon Teflon, etc.) Semi-synthetic polymers (Example.
What are the 4 classes of polymers?
There are four basic kinds of biological macromolecules: carbohydrates, lipids, proteins, and nucleic acids. These polymers are composed of different monomers and serve different functions.
What is a polymer and its structure?
A polymer is composed of many simple molecules that are repeating structural units called monomers. A single polymer molecule may consist of hundreds to a million monomers and may have a linear, branched, or network structure.
What are polymers and how they are classified?
Polymer is a large molecule (macromolecule) composed of repeating structural units typically connected by covalent chemical bonds. One polymer molecular consists of thousands to millions of atoms, so its molecular weight is large. Polymers are mainly classified as chain polymers and net polymers.
What are the types of polymers explain with example?
Difference Between Thermosetting and Thermoplastic Polymers
| Thermoplastics Polymer | Thermosetting Polymer |
|---|---|
| Soft, weak, ductile | Hard, strong, brittle |
| Examples are acrylic, polyester, polypropylene, polystyrene, nylon and Teflon | Examples are epoxy, silicone, polyurethane and phenolic polymers. |
•
16 sept 2021
What are the structures and properties of polymers?
Polymers always have at least two phases namely, amorphous and crystalline. It is not its Tg, but rather its crystallinity that determines whether the material is a plastic or rubber. The crystals (hard phases) and rubbery (soft phases) make the PE behave as a plastic with toughness, and not as a rubber.
How do you determine the structure of a polymer?
Every polymer structure possesses a unique collection of spectroscopic vibrations, and on this basis, the stereoconfiguration and conformation of the polymer chain in the solid state can be determined by measuring of the properties of the spectroscopic vibrations.
How is the structure of a polymer related to its function?
The monomers that a polymer is made up of decide its structure and therefore it’s function. These monomers are linked and coiled in a very specific manor giving the polymer a specific tertiary structure (an extensively coiled and linked polymer chain caused as a result of the formation of more bonds forming).
How polymers are classified on the basis of their thermal response?
They are thermoplastic polymers and thermosetting polymers. <br> Thermoplastic polymers are addition linear polymers. These soften and melt on heating. They can be remoulded, recast and reshaped.
How plastics can be classified according to their molecular structure and what is the main difference between the classified types?
According to their characteristics, there are three types of classifications regarding plastics according to: their chemical structure, their polarity and their applications. According to their chemical structure and temperature behaviour, plastics can be divided into: thermoplastics. thermosets.
How can you classify the polymerization process?
There are two main classes of polymerization reaction mechanisms: step-growth polymerization and chain-growth polymerization.