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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.
Abbie Hyatt
Crystallinity in polymers refers to the degree to which polymer chains are arranged in an ordered, repetitive pattern. A higher degree of crystallinity indicates a more ordered structure, leading to higher mechanical properties such as stiffness and strength. Polymers with low crystallinity typically exhibit more flexibility and are often transparent.
Wiki User
∙ 13y agoFactors affecting crystallinity of polymers:-
1. Rate of cooling
2. Chain Configuration
3. Linear/Branched Polymers
4. Stereo Isomers
5. Bulky Side Groups
6. Co- Polymers
Wiki User
∙ 12y agotime goes back to the past and your mother and father didn't make you. you didn't exist...
Wiki User
∙ 15y agoThey are created by monomers
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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.
How can polymers be modified to change their properties?
Polymers can be modified by adding additives, blending different polymers together, controlling the molecular weight, crosslinking, or changing the copolymer composition. These modifications can alter the mechanical properties, thermal stability, or chemical resistance of the polymer.
What are the factors that influence crystallinity?
Factors that influence crystallinity include the rate of cooling or solidification of a material, the presence of impurities or defects in the crystal lattice, the degree of molecular alignment during solidification, and the chemical composition of the material. Additionally, processing conditions such as pressure and temperature can also affect crystallinity.
Why do natural polymers not pose as much of an issue in landfills as synthetic polymers Natural polymers are cheap to recycle and synthetic polymers are expensive to recycle. Natural polymers are expe?
Natural polymers will degrade over time.... man-made polymers are not biodegradable - and need to be processed.
What disadvantages does crystallinity in a polymer offer?
Crystallinity in a polymer can lead to decreased flexibility and impact resistance. It may also make the material more prone to stress cracking. Additionally, the presence of crystalline regions can affect the transparency and processability of the polymer.
In what four ways can polymers be modified to change there properties?
1. Chain length 2. Plasticizers 3. Cross linking 4. Crystallinity
What is meant by water soluble polymers?
Water soluble polymers are polymers that will dissolve in water.
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.
How can polymers be modified to change their properties?
Polymers can be modified by adding additives, blending different polymers together, controlling the molecular weight, crosslinking, or changing the copolymer composition. These modifications can alter the mechanical properties, thermal stability, or chemical resistance 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 disadvantages does crystallinity in a polymer offer?
Crystallinity in a polymer can lead to decreased flexibility and impact resistance. It may also make the material more prone to stress cracking. Additionally, the presence of crystalline regions can affect the transparency and processability of the polymer.
What characteristic of minerals is not a characteristic of mineraloids?
Crystallinity is a characteristic of minerals, but not mineraloids.
What is TPO plastic?
Although there is no true standard of nomenclature for blended polymers, TPO typically stands for a category of polymers known as Thermoplastic Polyolefins. Polyolefins are a group of polymers comprised of mainly hydrogen and carbon, mainly polyethylene and polypropylene. TPO's are typically a blend of polyolefins with other additives designed to create a polymer which has a very specific processing and performance characteristic. In many cases the TPO blend has less semi-crystallinity, less strength, more ductility, higher toughness, more flexibility, and more shrinkage than the base polypropylene and polyethylene constituents. (courtesy of plastics training and technology)
Why do natural polymers not pose as much of an issue in landfills as synthetic polymers Natural polymers are cheap to recycle and synthetic polymers are expensive to recycle. Natural polymers are expe?
Natural polymers will degrade over time.... man-made polymers are not biodegradable - and need to be processed.
What is the purpose of polymers?
Polymers serve a variety of purposes, including being used as materials for manufacturing plastics, fibers, rubber, and adhesives. They are also essential in industries like healthcare, construction, and electronics for applications such as drug delivery, insulation, and circuitry. Additionally, polymers can be designed with specific properties to meet diverse needs, making them versatile and valuable materials.
What is a mineraloid?
A mineraloid is a naturally occurring substance that lacks a crystalline structure, which distinguishes it from minerals that have a well-defined atomic structure. They may have a chemical composition similar to minerals but do not exhibit the same regularity in their internal arrangement of atoms. Amber and opal are examples of mineraloids.
