Solidification is when you test how hard the mineral is.
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.
Number-average degree of polymerization = (Number-average molecular weight of polymer) / (Molecular weight of repeating unit) For polypropylene, the molecular weight of the repeating unit is 42 g/mol. Thus, degree of polymerization = 1000000 g/mol / 42 g/mol = 23809.52.
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.
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.
Polymerization is the process that bonds monomers together to form polymers. This can occur through various mechanisms like addition polymerization, condensation polymerization, and ring-opening polymerization.
higher crystallinity in a polymer = lower density
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.
Number-average degree of polymerization = (Number-average molecular weight of polymer) / (Molecular weight of repeating unit) For polypropylene, the molecular weight of the repeating unit is 42 g/mol. Thus, degree of polymerization = 1000000 g/mol / 42 g/mol = 23809.52.
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.
Well,, that's a good one!!! We can measure it spectrophotometrically by measuring the amount of inorganic phosphate released during the reaction. Also we can use Light scattering and Refractive Index analysis to measure the Degree of polymerization of Amylose!!! bhanu1_prakash@yahoo.co.in
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.
In this type of polymerization monomers are added successive without any loss of molecule or atom.
Polymerization is the process that bonds monomers together to form polymers. This can occur through various mechanisms like addition polymerization, condensation polymerization, and ring-opening polymerization.
Oil polymerization is a process where small molecules in oil combine to form larger molecules, resulting in the formation of polymers. This process can change the properties of polymers by increasing their strength, durability, and heat resistance. Additionally, oil polymerization can also improve the flexibility and chemical resistance of polymers, making them more suitable for various applications.
Atactic and syndiotactic polymerization.
The degree of polymerization(n) is the ratio between Molecular weight(M) and the molar mass of the repeating unit in a polymer(m). M=n*m The molar mass(m) of the monomer (styrene) is 104.15 grams/mol if you are given a Molecular weight, just devide by m, and you've got it!
Polymerization is the synthesis process that joins two monomers together to form a polymer. This process can occur through various mechanisms, such as addition polymerization, condensation polymerization, or ring-opening polymerization.