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What are the key differences between crystalline and amorphous polymers?
Crystalline polymers have a highly ordered molecular structure with repeating patterns, while amorphous polymers have a random molecular arrangement without distinct patterns. Crystalline polymers tend to be more rigid and have higher melting points, while amorphous polymers are more flexible and have lower melting points.
What are the differences between amorphous and crystalline polymers?
Amorphous polymers have randomly arranged molecular chains, making them flexible and transparent, while crystalline polymers have ordered molecular chains, making them rigid and opaque.
What is the difference between melt spinning and dry spinning?
Melt spinning is used for polymers that can be melted i.e. the polymers must have a melting temperature (thermoplastic polymers). Dry spinning is used for polymers that do no have melting temperature and need to be dissolved in solvent (thermoset polymers). In case of melt spinning, the polymer solidifies by cooling after being extruded from the spinneret. Whereas, in case of dry spinning, the polymer solidifies through evaporation of solvents and this is achieved by a stream of air or inert gas.
Are polymers good insulators?
Yes, polymers can be good insulators because they have high electrical resistivity compared to metals. This property makes them useful in applications where electrical conductivity needs to be minimized, such as in the insulation of electrical wires or in electronic components.
When was Nature Physics created?
Nature Physics was created in 2005.
How are nature polymers and synthetic polymers similar?
Nature polymers and synthetic polymers are both large molecules made up of repeating units called monomers. They both have high molecular weights and exhibit similar properties like flexibility, strength, and durability. Additionally, both nature and synthetic polymers can be engineered to have specific properties for various applications.
Are all polymers man made?
No, not all polymers are man-made. Some polymers can be found in nature, such as proteins, cellulose, and DNA. These natural polymers have unique properties and functions in living organisms.
Name some polymers that are produced in nature?
There are several polymers in living beings, for example, proteins, DNA, RNA, and polysaccharides.
What polymers are found in nature?
Examples: starch, cellulose, polypeptides, nucleic acids.
Do composite materials never include polymers?
Composite materials can include polymers as one of their components. Polymers are often used as matrices or reinforcement materials in composites due to their versatility, lightweight nature, and strength. Examples of polymer-based composites include carbon fiber reinforced polymers (CFRP) and glass fiber reinforced polymers (GFRP).
How are natural polymers and synthetic polymers similar?
Rubber is a natural polymers with elastic and plastic type behavior. It is found in nature and extracted from trees. PET (soda bottles) Polyethylene Terephthalate is a synthetic polymer and not found in nature.
What are the two different types of polymers?
1. Polyethylene.2. Polyester.These are the main two types of plastics;there may be many more plastics lying on the grounds of this big chunk of land[EARTH].
What are natural and synthetic polymers?
A natural polymer would be rubber which is obtained from nature. A synthetic polymer would be polybutadiene which behaves like rubber.
A list of natural polymers?
Natural polymers are discussed in other web pages and include:Proteins - silk, collagen, keratin.Carbohydrates - cellulose, starch, glycogenDNA - RNAOther Natural polymers: Rubber (hydrocarbon base) and silicones (alternating silicon and oxygen).
Macromolecule formed when monomers are joined together?
A polymer is formed when monomers are joined together through chemical bonds. Polymeric macromolecules can have a wide range of functions and properties depending on the specific monomer units and how they are linked. Examples of polymers in nature include proteins, DNA, and carbohydrates.
What is meant by water soluble polymers?
Water soluble polymers are polymers that will dissolve in water.
A large molecule synthesized from many monomers is called a what?
they are called polymers
