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How Degree of polymerization affect to the crystallinity?
A higher degree of polymerization generally leads to higher crystallinity in polymers. Longer polymer chains can pack together more closely in an organized manner, increasing the likelihood of crystalline regions forming. This results in a higher degree of ordered molecular structure, leading to increased crystallinity in the polymer.
What are the factors that influence crystallinity?
In general it can be said that the most important factor affecting the crystallinity is the structure of the components used in polymer synthesis. If the polymer synthesized has a very symmetrical structure, then we can say that a highly crystalline material will form. The tacticity of the polymer is also important factor affecting the crystallinity. If the components are reacting in an ordered way, like syndiotactic PET, the material will be highly crystalline. But if the PET is atactic then it will be highly amorphous,even if the components of the polymer are the same.
What is meant by crystallinity in polymers?
Crystals are type of solid state bodies whose structural order are well defined and have a unique lattice structures. There is a perfect distance between the various layers in its structure. Crystallinity has big influence on the hardness, density of the body. Non- Crystalline substances are the ones who lack the structural order and do not posses the well defined lattice structure. They tend to have lower density and low melting point as there atoms are scattered. Crystals have high tensile strength while the non crystals are not.
What are the characteristics of branched polymers and how do they differ from linear polymers?
Branched polymers have side chains branching off from the main polymer chain, giving them a more complex structure. This branching increases their flexibility and reduces their crystallinity compared to linear polymers, which have a straight chain structure. Branched polymers also have lower viscosity and higher elasticity than linear polymers.
Is glue a polymer?
Yes, glue is a polymer.
How is density influenced by crystallinity?
higher crystallinity in a polymer = lower density
How Degree of polymerization affect to the crystallinity?
A higher degree of polymerization generally leads to higher crystallinity in polymers. Longer polymer chains can pack together more closely in an organized manner, increasing the likelihood of crystalline regions forming. This results in a higher degree of ordered molecular structure, leading to increased crystallinity in the polymer.
What are the factors that influence crystallinity?
In general it can be said that the most important factor affecting the crystallinity is the structure of the components used in polymer synthesis. If the polymer synthesized has a very symmetrical structure, then we can say that a highly crystalline material will form. The tacticity of the polymer is also important factor affecting the crystallinity. If the components are reacting in an ordered way, like syndiotactic PET, the material will be highly crystalline. But if the PET is atactic then it will be highly amorphous,even if the components of the polymer are the same.
What synthetic polymer gets harder as the number of carbon atoms in the polymer chain increases?
Polymethyl methacrylate (PMMA), commonly known by the brand name Plexiglas, is a synthetic polymer that tends to become harder as the number of carbon atoms in the polymer chain increases. This increase in chain length leads to a higher degree of crystallinity, which contributes to the material's strength and hardness.
What is the difference between isotactic polypropylene and syndiotactic polypropylene?
The difference between isotactic polypropylene and syndiotactic polypropylene lies in the arrangement of the propylene monomer units in the polymer chain. In isotactic polypropylene, all the methyl groups of the propylene units are on the same side of the polymer chain, while in syndiotactic polypropylene, the methyl groups alternate sides. This difference in arrangement affects the properties and crystallinity of the polymer.
What structural characteristics of polymers would result in a relatively high melting point?
High polarity would give higher crystallinity and thus higher melting point. High degrees of cross-linking will mean the polymer may not even melt but char.
What describes a characteristic of branched polymers?
Branched polymers have side chains or branches extending from the main polymer chain, giving them a more complex and three-dimensional structure. This branching can affect the physical properties of the polymer, such as its flexibility, crystallinity, and viscosity. Branched polymers often exhibit different properties compared to their linear counterparts, making them useful in various applications, such as in adhesives and viscosity modifiers.
What is meant by crystallinity in polymers?
Crystals are type of solid state bodies whose structural order are well defined and have a unique lattice structures. There is a perfect distance between the various layers in its structure. Crystallinity has big influence on the hardness, density of the body. Non- Crystalline substances are the ones who lack the structural order and do not posses the well defined lattice structure. They tend to have lower density and low melting point as there atoms are scattered. Crystals have high tensile strength while the non crystals are not.
What are disadvantages of polymer banknotes?
Traditional banknotes are printed on cotton paper, which can be torn, creased and destroyed by washing. Polymer banknotes are made from a type of polypropylene plastic which is very durable.
Describe the following term in synthetic polymers syndiotactics?
In synthetic polymers, syndiotactic refers to a specific arrangement of monomer units in a polymer chain where the side groups alternate positions on opposite sides of the main chain. This arrangement can lead to unique material properties, such as increased stiffness and crystallinity, compared to atactic or isotactic polymers.
What services do Harvey Industries offer?
Harvey Industries offer services to do with the casting of metal. This includes casting aluminium, and polymer injection moulding. They also do machining, assembly work, and testing.
Is a diamond a polymer?
polymer
