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Cross-links usually occur when a polymer molecule is at a larger size. A larger sized molecule is held together by stronger covalent bonds, and henceforth the force between the molecules is stronger. As the force between the molecules gets stronger, more energy is needed to separate them, meaning the melting point increases.
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Is a brittle solid with a high melting point a metal crystal or polymer?
A brittle solid with a high melting point is typically a metal crystal rather than a polymer. Metals often exhibit high melting points due to the strong metallic bonds between atoms, and they can be brittle in certain conditions, especially if they are not ductile. In contrast, polymers tend to have lower melting points and are generally more flexible, though some can be brittle. Thus, the characteristics described align more closely with metal crystals.
Will heating a lithium- polymer cell increase its efficiency?
yes
Why is polymer bouncy?
Rubber is especially bouncy because of its wrinkled chains between sparse crosslinks. The crosslinking prevents the material being a liquid. The chains become almost linear when the material is stretched. The restoring force is a statistical phenomenon: There are many more wrinkled conformations than "almost linear" ones. The "need" for many conformations increases with temperature as does the restoring force.
Which synthetic polymer get harder as the number of carbon atoms in the polymer chain increase?
Polyethylene gets harder as the number of carbon atoms increases.
What is polymer-polymer interaction?
Polymer-polymer interactions refer to the attractive or repulsive forces that occur between different polymer chains. These interactions can influence the physical properties of the polymers, such as their solubility, mechanical strength, and thermal stability. Understanding and controlling polymer-polymer interactions is important for designing new materials with specific properties.
What is the difference between the annealing temperature and the melting temperature in the context of polymer processing?
The annealing temperature is the temperature at which a polymer is heated to relieve internal stresses and improve its properties, without melting it. The melting temperature is the temperature at which a polymer transitions from a solid to a liquid state. In polymer processing, annealing temperature is used to improve the polymer's structure, while melting temperature is when the polymer becomes a liquid for shaping.
Why does borax help make slime?
Borax works as a slime activator by linking the polymer molecules in the glue together, creating the stretchy and gooey texture of slime. It helps to form crosslinks between the long strands of molecules in the glue, resulting in the desired slime consistency.
What are the Relationships between polymer and a monomer?
A polymer is build out of its monomers.
Is a brittle solid with a high melting point a metal crystal or polymer?
A brittle solid with a high melting point is typically a metal crystal rather than a polymer. Metals often exhibit high melting points due to the strong metallic bonds between atoms, and they can be brittle in certain conditions, especially if they are not ductile. In contrast, polymers tend to have lower melting points and are generally more flexible, though some can be brittle. Thus, the characteristics described align more closely with metal crystals.
Will heating a lithium- polymer cell increase its efficiency?
yes
What has the author J R A Pearson written?
J. R. A. Pearson has written: 'Complex fluids in engineering' 'Mechanical principles of polymer melt processing' -- subject(s): Polymer melting
Why is polymer bouncy?
Rubber is especially bouncy because of its wrinkled chains between sparse crosslinks. The crosslinking prevents the material being a liquid. The chains become almost linear when the material is stretched. The restoring force is a statistical phenomenon: There are many more wrinkled conformations than "almost linear" ones. The "need" for many conformations increases with temperature as does the restoring force.
What do scientists predict that polymer products will increase the use of?
Nuclear energy
Which synthetic polymer get harder as the number of carbon atoms in the polymer chain increase?
Polyethylene gets harder as the number of carbon atoms increases.
What happens when you add borax and glycerol to glue?
When borax is added to glue, it crosslinks the polymer chains in the glue to form a stronger and more rigid material, commonly known as slime. Glycerol can act as a plasticizer, helping to maintain the flexibility and stretchiness of the slime while preventing it from drying out.
What is difference between simple and long chain polymer?
simple polymer are define as themosofning plastic where as long chain polymer define as thermosetting plastic
What is polymer-polymer interaction?
Polymer-polymer interactions refer to the attractive or repulsive forces that occur between different polymer chains. These interactions can influence the physical properties of the polymers, such as their solubility, mechanical strength, and thermal stability. Understanding and controlling polymer-polymer interactions is important for designing new materials with specific properties.
