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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
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?
Solidification is when you test how hard the mineral is.
How can polymers be modified to change their properties?
They can changed in various different ways such as cross linking with polymers with weaker or stronger molecular structures. Their chain length can also be increased to strengthen them. They can be plastercized, which will make them softer or their crystallinity can be increased, making their branches more organized and close together, making them harder to separate.
What disadvantages does crystallinity in a polymer offer?
The disadvantage is that it has a 63.8% of killing or poisoning you
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 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.
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?
Solidification is when you test how hard the mineral is.
How can polymers be modified to change their properties?
They can changed in various different ways such as cross linking with polymers with weaker or stronger molecular structures. Their chain length can also be increased to strengthen them. They can be plastercized, which will make them softer or their crystallinity can be increased, making their branches more organized and close together, making them harder to separate.
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?
The disadvantage is that it has a 63.8% of killing or poisoning you
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 are used all around, plastics and rubber are polymers.
What is a mineraloid?
A mineraloid is a mineral like substance that does not dumonstate crystallinity
